2x-40+2x-40=90

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Solution for 2x-40+2x-40=90 equation: 



2x-40+2x-40=90

We move all terms to the left:

2x-40+2x-40-(90)=0

We add all the numbers together, and all the variables

4x-170=0

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

4x=170

x=170/4

x=42+1/2

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