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प्रश्न
Add 3x, 7x
उत्तर
Required sum = 3x + 7x
= (3+7)x = 10x
APPEARS IN
संबंधित प्रश्न
Check whether the value given in the bracket is a solution to the given equation or not:
7n + 5 = 19 (n = − 2)
Add the following:
\[2 x^2 - 3xy + y^2 \]
\[ - 7 x^2 - 5xy - 2 y^2 \]
4 x2 + xy - 6 y2
_______________
Simplify:
xy − [yz − zx − {yx − (3y − xz) − (xy − zy)}]
Write the following statement as an equation:
25 exceeds a number by 7.
Verify by substitution that the root of 3x − 5 = 7 is x = 4.
Solve the following equation by the trial-and-error method: 3y = 36
Solve: 4x + 9 = 17.
Write 'T' for true and 'F' for false for the statement given below:
The coefficient of x in 5xy is 5.
When a number is divided by 8, the result is –3. The number is ______.
State which of the following are equations (with a variable). Give reason for your answer. Identify the variable from the equations with a variable.
20 − (10 − 5) = 3 × 5
