4x-3=87-x

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Solution for 4x-3=87-x equation: 



4x-3=87-x

We move all terms to the left:

4x-3-(87-x)=0

We add all the numbers together, and all the variables

4x-(-1x+87)-3=0

We get rid of parentheses

4x+1x-87-3=0

We add all the numbers together, and all the variables

5x-90=0

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

5x=90

x=90/5

x=18

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