2(b+1)-(9+b)=-3

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Solution for 2(b+1)-(9+b)=-3 equation: 


Simplifying
2(b + 1) + -1(9 + b) = -3

Reorder the terms:
2(1 + b) + -1(9 + b) = -3
(1 * 2 + b * 2) + -1(9 + b) = -3
(2 + 2b) + -1(9 + b) = -3
2 + 2b + (9 * -1 + b * -1) = -3
2 + 2b + (-9 + -1b) = -3

Reorder the terms:
2 + -9 + 2b + -1b = -3

Combine like terms: 2 + -9 = -7
-7 + 2b + -1b = -3

Combine like terms: 2b + -1b = 1b
-7 + 1b = -3

Solving
-7 + 1b = -3

Solving for variable 'b'.

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

Add '7' to each side of the equation.
-7 + 7 + 1b = -3 + 7

Combine like terms: -7 + 7 = 0
0 + 1b = -3 + 7
1b = -3 + 7

Combine like terms: -3 + 7 = 4
1b = 4

Divide each side by '1'.
b = 4

Simplifying
b = 4

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