21 - 4x = 108
<em><u>Subtract 21 from both sides</u></em>
-4x = 87
<em><u>Divide both sides by -4</u></em>
x = -21.75
Answer:
A
Step-by-step explanation:
The line on the right has equation y = x + 1
The absolute value function always gives a positive value
Thus the equation is y = | x + 1 | → A