28=7.5-2s

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Solution for 28=7.5-2s equation: 



28=7.5-2s

We move all terms to the left:

28-(7.5-2s)=0

We add all the numbers together, and all the variables

-(-2s+7.5)+28=0

We get rid of parentheses

2s-7.5+28=0

We add all the numbers together, and all the variables

2s+20.5=0

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

2s=-20.5

s=-20.5/2

s=-10+0.5/2

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