5x-2=7x+4=90

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Solution for 5x-2=7x+4=90 equation: 



5x-2=7x+4=90

We move all terms to the left:

5x-2-(7x+4)=0

We get rid of parentheses

5x-7x-4-2=0

We add all the numbers together, and all the variables

-2x-6=0

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

-2x=6

x=6/-2

x=-3

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