MCQ - 39-1417

Correct Answer: D

Explanation:

In order to solve for the variable, x, we need to isolate it on the left side of the equation. We will do this by reversing the operations done to the variable by performing the opposite of each operation on both sides of the equation.

Let's begin by rewriting the given equation.

${\displaystyle \frac{x}{4}+11=15}$

Subtract 11 from both sides of the equation.

${\displaystyle \frac{x}{4}+11-<!--\; -\; -->11=15-<!--\; -\; -->11}$

Simplify

${\displaystyle \frac{x}{4}=4}$

Multiply both sides of the equation by 4.

${\displaystyle \frac{x}{4}\times <!--\; \times \; -->4=4\times <!--\; \times \; -->4}$

Solve.

${\displaystyle x=16}$