77+-1x=-9x-4x

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Solution for 77+-1x=-9x-4x equation: 



77+-1x=-9x-4x

We move all terms to the left:

77+-1x-(-9x-4x)=0

We add all the numbers together, and all the variables

-1x-(-13x)+77+=0

We add all the numbers together, and all the variables

-1x-(-13x)=0

We get rid of parentheses

-1x+13x=0

We add all the numbers together, and all the variables

12x=0

x=0/12

x=0

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