7=-2(b+3)+5

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Solution for 7=-2(b+3)+5 equation: 



7=-2(b+3)+5

We move all terms to the left:

7-(-2(b+3)+5)=0



We calculate terms in parentheses: -(-2(b+3)+5), so:

-2(b+3)+5

We multiply parentheses

-2b-6+5

We add all the numbers together, and all the variables

-2b-1

Back to the equation:

-(-2b-1)



We get rid of parentheses

2b+1+7=0

We add all the numbers together, and all the variables

2b+8=0

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

2b=-8

b=-8/2

b=-4

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