Advertisements
Advertisements
Question
Evaluate :
7x − 9y + 3 − 3x − 5y + 8
Sum
Solution
7x − 9y + 3 − 3x − 5y + 8
= 7x − 3x − 9y − 5y + 3 + 8
= 4x − 14y + 11
shaalaa.com
Combining like Terms
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Evaluate :
b2y − 9b2y + 2b2y − 5b2y
Evaluate :
abx − 15abx − 10abx + 32abx
Add : 3b − 7c + 10, 5c − 2b − 15, 15 + 12c + b
Add : a − 3b + 3; 2a + 5 − 3c; 6c − 15 + 6b
Find the total savings of a boy who saves ₹ (4x – 6y), ₹ (6x + 2y), ₹ (4y – x) and ₹ (y – 2x) for four consecutive weeks.
Subtract : x3 − 4x − 1 from 3x3 − x2 + 6
Subtract the sum of 5y2 + y – 3 and y2 – 3y + 7 from 6y2 + y – 2.
How much less 2a2 + 1 is than 3a2 – 6 ?
If x = 6a + 8b + 9c ; y = 2b – 3a – 6c and z = c – b + 3a ; find :
- x + y + z
- x – y + z
- 2x – y – 3z
- 3y – 2z – 5x
The sides of a triangle are x2 – 3xy + 8, 4x2 + 5xy – 3 and 6 – 3x2 + 4xy. Find its perimeter.