-x-45=4x+30

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Solution for -x-45=4x+30 equation: 



-x-45=4x+30

We move all terms to the left:

-x-45-(4x+30)=0

We add all the numbers together, and all the variables

-1x-(4x+30)-45=0

We get rid of parentheses

-1x-4x-30-45=0

We add all the numbers together, and all the variables

-5x-75=0

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

-5x=75

x=75/-5

x=-15

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