85=-4x-5x+4

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Solution for 85=-4x-5x+4 equation: 



85=-4x-5x+4

We move all terms to the left:

85-(-4x-5x+4)=0

We add all the numbers together, and all the variables

-(-9x+4)+85=0

We get rid of parentheses

9x-4+85=0

We add all the numbers together, and all the variables

9x+81=0

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

9x=-81

x=-81/9

x=-9

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