7b-(3b-4)=12+2b

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Solution for 7b-(3b-4)=12+2b equation:


Simplifying
7b + -1(3b + -4) = 12 + 2b

Reorder the terms:
7b + -1(-4 + 3b) = 12 + 2b
7b + (-4 * -1 + 3b * -1) = 12 + 2b
7b + (4 + -3b) = 12 + 2b

Reorder the terms:
4 + 7b + -3b = 12 + 2b

Combine like terms: 7b + -3b = 4b
4 + 4b = 12 + 2b

Solving
4 + 4b = 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.
4 + 4b + -2b = 12 + 2b + -2b

Combine like terms: 4b + -2b = 2b
4 + 2b = 12 + 2b + -2b

Combine like terms: 2b + -2b = 0
4 + 2b = 12 + 0
4 + 2b = 12

Add '-4' to each side of the equation.
4 + -4 + 2b = 12 + -4

Combine like terms: 4 + -4 = 0
0 + 2b = 12 + -4
2b = 12 + -4

Combine like terms: 12 + -4 = 8
2b = 8

Divide each side by '2'.
b = 4

Simplifying
b = 4

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