15-8b=-4(9b-5)

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Solution for 15-8b=-4(9b-5) equation:


Simplifying
15 + -8b = -4(9b + -5)

Reorder the terms:
15 + -8b = -4(-5 + 9b)
15 + -8b = (-5 * -4 + 9b * -4)
15 + -8b = (20 + -36b)

Solving
15 + -8b = 20 + -36b

Solving for variable 'b'.

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

Add '36b' to each side of the equation.
15 + -8b + 36b = 20 + -36b + 36b

Combine like terms: -8b + 36b = 28b
15 + 28b = 20 + -36b + 36b

Combine like terms: -36b + 36b = 0
15 + 28b = 20 + 0
15 + 28b = 20

Add '-15' to each side of the equation.
15 + -15 + 28b = 20 + -15

Combine like terms: 15 + -15 = 0
0 + 28b = 20 + -15
28b = 20 + -15

Combine like terms: 20 + -15 = 5
28b = 5

Divide each side by '28'.
b = 0.1785714286

Simplifying
b = 0.1785714286

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