Choose all answers that apply:

(Choice A)


A) -5x+12=5x-5
B) -5x+12=-5x-12
C) -5x+12=5x+12
D) -5x+12=-12x-12

1 answer

To choose the correct equations, let's examine each one.

A) \(-5x + 12 = 5x - 5\)

Rearranging gives: \(-5x - 5x = -5 - 12\) \(-10x = -17\) which simplifies to \(x = \frac{17}{10}\).

B) \(-5x + 12 = -5x - 12\)

Rearranging gives: \(-5x + 5x = -12 - 12\) \(0 = -24\) which is false.

C) \(-5x + 12 = 5x + 12\)

Rearranging gives: \(-5x - 5x = 12 - 12\) \(-10x = 0\) which simplifies to \(x = 0\).

D) \(-5x + 12 = -12x - 12\)

Rearranging gives: \(-5x + 12x = -12 - 12\) \(7x = -24\) which simplifies to \(x = -\frac{24}{7}\).

Proposed answers:

The following equations are valid:

  • A) is true
  • B) is false
  • C) is true
  • D) is true

So, the answers that apply are A, C, D.