1+7s=-9+9s

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Solution for 1+7s=-9+9s equation: 



1+7s=-9+9s

We move all terms to the left:

1+7s-(-9+9s)=0

We add all the numbers together, and all the variables

7s-(9s-9)+1=0

We get rid of parentheses

7s-9s+9+1=0

We add all the numbers together, and all the variables

-2s+10=0

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

-2s=-10

s=-10/-2

s=+5

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