15=7+8(3b-8)

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Solution for 15=7+8(3b-8) equation:


Simplifying
15 = 7 + 8(3b + -8)

Reorder the terms:
15 = 7 + 8(-8 + 3b)
15 = 7 + (-8 * 8 + 3b * 8)
15 = 7 + (-64 + 24b)

Combine like terms: 7 + -64 = -57
15 = -57 + 24b

Solving
15 = -57 + 24b

Solving for variable 'b'.

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

Add '-24b' to each side of the equation.
15 + -24b = -57 + 24b + -24b

Combine like terms: 24b + -24b = 0
15 + -24b = -57 + 0
15 + -24b = -57

Add '-15' to each side of the equation.
15 + -15 + -24b = -57 + -15

Combine like terms: 15 + -15 = 0
0 + -24b = -57 + -15
-24b = -57 + -15

Combine like terms: -57 + -15 = -72
-24b = -72

Divide each side by '-24'.
b = 3

Simplifying
b = 3

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