81+8x=-9

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Solution for 81+8x=-9 equation: 



81+8x=-9

We move all terms to the left:

81+8x-(-9)=0

We add all the numbers together, and all the variables

8x+90=0

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

8x=-90

x=-90/8

x=-11+1/4

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