12-4b=4(2b+5)

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Solution for 12-4b=4(2b+5) equation:


Simplifying
12 + -4b = 4(2b + 5)

Reorder the terms:
12 + -4b = 4(5 + 2b)
12 + -4b = (5 * 4 + 2b * 4)
12 + -4b = (20 + 8b)

Solving
12 + -4b = 20 + 8b

Solving for variable 'b'.

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

Add '-8b' to each side of the equation.
12 + -4b + -8b = 20 + 8b + -8b

Combine like terms: -4b + -8b = -12b
12 + -12b = 20 + 8b + -8b

Combine like terms: 8b + -8b = 0
12 + -12b = 20 + 0
12 + -12b = 20

Add '-12' to each side of the equation.
12 + -12 + -12b = 20 + -12

Combine like terms: 12 + -12 = 0
0 + -12b = 20 + -12
-12b = 20 + -12

Combine like terms: 20 + -12 = 8
-12b = 8

Divide each side by '-12'.
b = -0.6666666667

Simplifying
b = -0.6666666667

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