7x-8-9x=-18

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Solution for 7x-8-9x=-18 equation: 



7x-8-9x=-18

We move all terms to the left:

7x-8-9x-(-18)=0

We add all the numbers together, and all the variables

-2x+10=0

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

-2x=-10

x=-10/-2

x=+5

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