Question

arjun is solving the equation $7x + 16 = -3x - 4$. his work is shown. what is the value of $x$? $x = \square$ arjun’s work $7x + 16 = -3x - 4$ $+ 3x \quad \quad + 3x$ $10x + 16 = -4$

Explanation:

Step1: Subtract 16 from both sides

$10x + 16 - 16 = -4 - 16$
$10x = -20$

Step2: Divide by 10 on both sides

$\frac{10x}{10} = \frac{-20}{10}$

Answer:

$x = -2$