2(b+2)-(9+b)=-7

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Solution for 2(b+2)-(9+b)=-7 equation: 


Simplifying
2(b + 2) + -1(9 + b) = -7

Reorder the terms:
2(2 + b) + -1(9 + b) = -7
(2 * 2 + b * 2) + -1(9 + b) = -7
(4 + 2b) + -1(9 + b) = -7
4 + 2b + (9 * -1 + b * -1) = -7
4 + 2b + (-9 + -1b) = -7

Reorder the terms:
4 + -9 + 2b + -1b = -7

Combine like terms: 4 + -9 = -5
-5 + 2b + -1b = -7

Combine like terms: 2b + -1b = 1b
-5 + 1b = -7

Solving
-5 + 1b = -7

Solving for variable 'b'.

Move all terms containing b to the left, all other terms to the right.

Add '5' to each side of the equation.
-5 + 5 + 1b = -7 + 5

Combine like terms: -5 + 5 = 0
0 + 1b = -7 + 5
1b = -7 + 5

Combine like terms: -7 + 5 = -2
1b = -2

Divide each side by '1'.
b = -2

Simplifying
b = -2

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