-13=-7-7/2s

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Solution for -13=-7-7/2s equation: 



-13=-7-7/2s

We move all terms to the left:

-13-(-7-7/2s)=0



Domain of the equation: 2s)!=0

s!=0/1

s!=0

s∈R



We add all the numbers together, and all the variables

-(-7/2s-7)-13=0

We get rid of parentheses

7/2s+7-13=0

We multiply all the terms by the denominator


7*2s-13*2s+7=0

Wy multiply elements

14s-26s+7=0

We add all the numbers together, and all the variables

-12s+7=0

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

-12s=-7

s=-7/-12

s=7/12

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