Question

Jalil and Victoria are each asked to solve the equation ax – c = bx + d for x. Jalil says it is not possible to isolate x because each x has a different unknown coefficient. Victoria believes there is a solution, and shows Jalil her work:  ax – c = bx + d  ax – bx = d + c  x (a – b) = d + c  x =   How can Victoria justify Step 3 of her work?

Answer 1

IT is A: Rewrite the expression on the left using the distributive property.

Answer 2

Rewrite the expression on the left using the distributive property. In other words choice 1.