Respuesta :

Manishkha493

Answer:

Step-by-step explanation:

-2x+3x=-21+6

or x=-15

lchavez31

Answer:

x=3

Step-by-step explanation:

-2x-6=3x-21

Add 21 to both sides of the equation

  • -2x-6+21=3x-21+21
  • -2x+15=3x

Add 2x to both sides of the equation

  • -2x+2x+15=3x+2x
  • 15=5x

Divide each side by 5 to isolate x

  • 15÷5=5x÷5
  • 3=x