2(7b-b)-4=12

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


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

Combine like terms: 7b + -1b = 6b
2(6b) + -4 = 12

Remove parenthesis around (6b)
2 * 6b + -4 = 12

Multiply 2 * 6
12b + -4 = 12

Reorder the terms:
-4 + 12b = 12

Solving
-4 + 12b = 12

Solving for variable 'b'.

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

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

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

Combine like terms: 12 + 4 = 16
12b = 16

Divide each side by '12'.
b = 1.333333333

Simplifying
b = 1.333333333

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