86=-4b+3(5b+3)

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Solution for 86=-4b+3(5b+3) equation:


Simplifying
86 = -4b + 3(5b + 3)

Reorder the terms:
86 = -4b + 3(3 + 5b)
86 = -4b + (3 * 3 + 5b * 3)
86 = -4b + (9 + 15b)

Reorder the terms:
86 = 9 + -4b + 15b

Combine like terms: -4b + 15b = 11b
86 = 9 + 11b

Solving
86 = 9 + 11b

Solving for variable 'b'.

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

Add '-11b' to each side of the equation.
86 + -11b = 9 + 11b + -11b

Combine like terms: 11b + -11b = 0
86 + -11b = 9 + 0
86 + -11b = 9

Add '-86' to each side of the equation.
86 + -86 + -11b = 9 + -86

Combine like terms: 86 + -86 = 0
0 + -11b = 9 + -86
-11b = 9 + -86

Combine like terms: 9 + -86 = -77
-11b = -77

Divide each side by '-11'.
b = 7

Simplifying
b = 7

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