Sarah's answer was incorrect.
In her equation, she subtracted 33 from both sides of the equation instead of adding it to both sides. The correct equation should be 5x + 3 = 9x + 33. So, her solution of x=9 is incorrect.
Sarah and Jose were trying to solve the problem. Which one was INCORRECT and why? The image shows 2 parallel lines and an intersecting lines which create two angles (5x+3) and (9x-33).
Jose's Answer:
5x+3+9x-22=180
14x-30=180
14x=210
x=15
Sarah's answer:
5x+3=9x-33
3=4x-33
36=4x
x=9
1 answer