Respuesta :

Answer:

3x + 20 = 8x + 60

-5x + 20 = 60

-5x = 40

x = -8

Step-by-step explanation:

3x + 20 = 8x+60

Move 8x to the other side

Sign changes from +8x to -8x

3x-8x+20= 8x-8x+60

3x-8x+20= 60

-5x+20= 60

Move 20 to the other side

Sign changes from +20 to -20

-5x+20-20= 60-20

-5x= 60-20

-5x= 40

Divide by -5 for both sides

-5x/-5= 40/-5

Answer: x= -8