-5x+4(x+21)=75

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Solution for -5x+4(x+21)=75 equation: 



-5x+4(x+21)=75

We move all terms to the left:

-5x+4(x+21)-(75)=0

We multiply parentheses

-5x+4x+84-75=0

We add all the numbers together, and all the variables

-1x+9=0

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

-x=-9

x=-9/-1

x=+9

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