Question

Solve for x. −4.5 = 1.5 − x A) −6 B) −3 C) 3 D) 6

Answer 1

To solve for x, you need to isolate/get the variable "x" by itself in the equation:

-4.5 = 1.5 - x Subtract 1.5 on both sides

-4.5 - 1.5 = 1.5 - 1.5 - x

-6 = -x Divide -1 on both sides to get "x" by itself

`(-6)/(-1) =(-x)/(-1)` [two negative signs cancel each other out and become positive]

6 = x Your answer is D

You could have also done (without having to do division):

-4.5 = 1.5 - x Add x on both sides to make x positive

-4.5 + x = 1.5 - x + x

-4.5 + x = 1.5 Add 4.5 on both sides

-4.5 + 4.5 + x = 1.5 + 4.5

x = 6