3x-42=5x-40

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Solution for 3x-42=5x-40 equation: 



3x-42=5x-40

We move all terms to the left:

3x-42-(5x-40)=0

We get rid of parentheses

3x-5x+40-42=0

We add all the numbers together, and all the variables

-2x-2=0

We move all terms containing x to the left, all other terms to the right

-2x=2

x=2/-2

x=-1

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