3-5x=-4x-81

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Solution for 3-5x=-4x-81 equation: 



3-5x=-4x-81

We move all terms to the left:

3-5x-(-4x-81)=0

We get rid of parentheses

-5x+4x+81+3=0

We add all the numbers together, and all the variables

-1x+84=0

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

-x=-84

x=-84/-1

x=+84

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