4(90-x)=90

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Solution for 4(90-x)=90 equation: 



4(90-x)=90

We move all terms to the left:

4(90-x)-(90)=0

We add all the numbers together, and all the variables

4(-1x+90)-90=0

We multiply parentheses

-4x+360-90=0

We add all the numbers together, and all the variables

-4x+270=0

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

-4x=-270

x=-270/-4

x=67+1/2

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