102=(s+6)+(s+6)+s+s+2s

Solution for 102=(s+6)+(s+6)+s+s+2s equation:

102=(s+6)+(s+6)+s+s+2s

We move all terms to the left:

102-((s+6)+(s+6)+s+s+2s)=0


We calculate terms in parentheses: -((s+6)+(s+6)+s+s+2s), so:

(s+6)+(s+6)+s+s+2s

We add all the numbers together, and all the variables

4s+(s+6)+(s+6)

We get rid of parentheses

4s+s+s+6+6

We add all the numbers together, and all the variables

6s+12

Back to the equation:

-(6s+12)


We get rid of parentheses

-6s-12+102=0

We add all the numbers together, and all the variables

-6s+90=0

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

-6s=-90

s=-90/-6

s=+15