84-4x=75-3.5x

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Solution for 84-4x=75-3.5x equation: 



84-4x=75-3.5x

We move all terms to the left:

84-4x-(75-3.5x)=0

We add all the numbers together, and all the variables

-4x-(-3.5x+75)+84=0

We get rid of parentheses

-4x+3.5x-75+84=0

We add all the numbers together, and all the variables

-0.5x+9=0

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

-0.5x=-9

x=-9/-0.5

x=+18

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