Answer: x = 10
Explanation:
4x+89=129
(2 parallel straight lines have congruent angles)
then solve for x.
Step 1: Subtract 89 from both sides of the equation.
4x = 40
(We want to isolate the variable x on one side of the equation. To do this, we need to get rid of the number 89 that is currently on the right side of the equation. To do this, we subtract 89 from both sides of the equation.)
Step 2: Divide both sides of the equation by 4.
x = 10
(To isolate the variable x further, we need to get rid of the coefficient 4 that is currently in front of x. To do this, we divide both sides of the equation by 4.)