7+8x-9=-10

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Solution for 7+8x-9=-10 equation: 



7+8x-9=-10

We move all terms to the left:

7+8x-9-(-10)=0

We add all the numbers together, and all the variables

8x+8=0

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

8x=-8

x=-8/8

x=-1

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