Question

Solve the given equation by undoing the operations:
$\frac{x}{2}+7=11$

• A. $x=4$
• B. $x=2$
• C. $x=16$
• D. $x=8$

Answer 1

The correct option is D $x=8$

Given, the equation is $\frac{x}{2}+7=11.$

Here, 7 is added to the left hand side of the equation. So, Take it on right hand side and subtract it.
$\Rightarrow \frac{x}{2}=11-7\Rightarrow \frac{x}{2}=4$

Here, 2 is divided on the left hand side of the equation. Take it on right hand side and multiply it.
$\Rightarrow x=4\times 2\Rightarrow x=8$

Hence, the solution of the equation $\frac{x}{2}+7=11$ is $x=8.$