Samacheer Kalvi solutions for Mathematics - Term 1 [English] Class 7 TN Board chapter 3 - Algebra [Latest edition]

The variable in the expression 16x – 7 is __________

The constant term of the expression 2y – 6 is _________

In the expression 25m + 14n, the type of the terms are ________ terms

The number of terms in the expression 3ab + 4c – 9 is __________

The numerical co-efficient of the term −xy is __________

x + (−x) = 0

The co-efficient of ab in the term 15 abc is 15

2pq and – 7qp are like terms

When y = –1, the value of the expression 2y – 1 is 3

Find the numerical co-efficient of the following term:

−3yx

Find the numerical co-efficient of the following term:

12k

Find the numerical co-efficient of the following term:

y

Find the numerical co-efficient of the following term:

121bc

Find the numerical co-efficient of the following term:

– x

Find the numerical co-efficient of the following term:

9pq

Find the numerical co-efficient of the following term:

2ab

Write the variables, constant and terms of the following expression

18 + x – y

Write the variables, constant and terms of the following expression

7p – 4q + 5

Write the variables, constant and terms of the following expression

29x + 13y

Write the variables, constant and terms of the following expression

b + 2

Identify the like terms among the following:

7x, 5y, −8x, 12y, 6z, z, −12x, −9y, 11z

If x = 2 and y = 3, then find the value of the following expressions

2x – 3y

If x = 2 and y = 3, then find the value of the following expressions

x + y

If x = 2 and y = 3, then find the value of the following expressions

4y – x

If x = 2 and y = 3, then find the value of the following expressions

x + 1 – y

An algebraic statement which is equivalent to the verbal statement “Three times the sum of ‘x’ and ‘y’ is

The numerical co-efficient of −7mn is

Choose the pair of like terms

The value of 7a – 4b when a = 3, b = 2 is

The addition of – 7b and 2b is ____________

The subtraction of 5m from −3m is _____________

The additive inverse of −37xyz is ___________

The expressions 8x + 3y and 7x + 2y cannot be added

If x is a natural number, then x + 1 is its predecessor

Sum of a – b + c and – a + b – c is zero

Add: 8x, 3x

Add: 7mn, 5mn

Add: −9y, 11y, 2y

Subtract: 4k from 12k

Subtract: 15q from 25q

Subtract: 7xyz from 17xyz

Find the sum of the following expressions

7p + 6q, 5p – q, q + 16p

Find the sum of the following expressions

a + 5b + 7c, 2a + 10b + 9c

Find the sum of the following expressions

mn + t, 2mn – 2t, – 3t + 3mn

Find the sum of the following expressions

u + v, u – v, 2u + 5v, 2u – 5v

Find the sum of the following expressions

5xyz – 3xy, 3zxy – 5yx

Subtract: 13x + 12y – 5 from 27x + 5y – 43

Subtract: 3p + 5 from p – 2q + 7

Subtract: m + n from 3m – 7n

Subtract: 2y + z from 6z – 5y

Simplify: (x + y – z) + (3x – 5y + 7z) – (14x + 7y – 6z)

Simplify: p + p + 2 + p + 3 + p – 4 – p – 5 + p + 10

Simplify: n + (m + 1) + (n + 2) + (m + 3) + (n + 4) + (m + 5)

The addition of 3mn, – 5mn, 8mn and – 4mn is

When we subtract ‘a’ from ‘−a’, we get __________

In an expression, we can add or subtract only ________

An expressions equated to another expression is called ____________

If a = 5, the value of 2a + 5 is ____________

The sum of twice and four times of the variable x is __________

Every algebraic expression is an equation

The expression 7x + 1 cannot be reduced without knowing the value of x

To add two like terms, its coefficients can be added

Solve: x + 5 = 8

Solve: p – 3 = 7

Solve: 2x = 30

Solve: `"m"/6` = 5

Solve: 7x + 10 = 80

What should be added to 3x + 6y to get 5x + 8y?

Nine added to thrice a whole number gives 45. Find the number

Find the two consecutive odd numbers whose sum is 200

The taxi charges in a city comprised of a fixed charge of ₹ 100 for 5 kms and ₹ 16 per km for every additional km. If the amount paid at the end of the trip was ₹ 740 find the distance travelled.

The generalization of the number pattern 3, 6, 9, 12, ... is

The solution of 3x + 5 = x + 9 is 

The equation y + 1 = 0 is true only when y is

Subtract – 3ab – 8 from 3ab + 8. Also, subtract 3ab + 8 from – 3ab – 8

Find the perimeter of a triangle whose sides are x + 3y, 2x + y, x – y

Thrice a number when increased by 5 gives 44. Find the number

How much smaller is 2ab + 4b – c than 5ab – 3b + 2c

Six times a number subtracted from 40 gives – 8. Find the number

From the sum of 5x + 7y – 12 and 3x – 5y + 2, subtract the sum of 2x – 7y – 1 and – 6x + 3y + 9

Find the expression to be added with 5a – 3b – 2c to get a – 4b – 2c?

What should be subtracted from 2m + 8n + 10 to get – 3m + 7n + 16?

Give an algebraic equation for the following statement:

“The difference between the area and perimeter of a rectangle is 20”.

Add: 2a + b + 3c and `"a" + 1/3"b" + 2/5"c"`