7x+9=-x-8

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



7x+9=-x-8

We move all terms to the left:

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

We add all the numbers together, and all the variables

7x-(-1x-8)+9=0

We get rid of parentheses

7x+1x+8+9=0

We add all the numbers together, and all the variables

8x+17=0

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

8x=-17

x=-17/8

x=-2+1/8

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