2(b+4)-(9+b)=-2

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Solution for 2(b+4)-(9+b)=-2 equation:


Simplifying
2(b + 4) + -1(9 + b) = -2

Reorder the terms:
2(4 + b) + -1(9 + b) = -2
(4 * 2 + b * 2) + -1(9 + b) = -2
(8 + 2b) + -1(9 + b) = -2
8 + 2b + (9 * -1 + b * -1) = -2
8 + 2b + (-9 + -1b) = -2

Reorder the terms:
8 + -9 + 2b + -1b = -2

Combine like terms: 8 + -9 = -1
-1 + 2b + -1b = -2

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

Solving
-1 + 1b = -2

Solving for variable 'b'.

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

Add '1' to each side of the equation.
-1 + 1 + 1b = -2 + 1

Combine like terms: -1 + 1 = 0
0 + 1b = -2 + 1
1b = -2 + 1

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

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

Simplifying
b = -1

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