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3x + 20 = 8x+60

3x + 20 = 8x + 60

-5x + 20 = 60

-5x = 40

x = - 8

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