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

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


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

Reorder the terms:
9 + -1b = -2(-7 + b) + -2
9 + -1b = (-7 * -2 + b * -2) + -2
9 + -1b = (14 + -2b) + -2

Reorder the terms:
9 + -1b = 14 + -2 + -2b

Combine like terms: 14 + -2 = 12
9 + -1b = 12 + -2b

Solving
9 + -1b = 12 + -2b

Solving for variable 'b'.

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

Add '2b' to each side of the equation.
9 + -1b + 2b = 12 + -2b + 2b

Combine like terms: -1b + 2b = 1b
9 + 1b = 12 + -2b + 2b

Combine like terms: -2b + 2b = 0
9 + 1b = 12 + 0
9 + 1b = 12

Add '-9' to each side of the equation.
9 + -9 + 1b = 12 + -9

Combine like terms: 9 + -9 = 0
0 + 1b = 12 + -9
1b = 12 + -9

Combine like terms: 12 + -9 = 3
1b = 3

Divide each side by '1'.
b = 3

Simplifying
b = 3

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