-86=-2+7(2b-4)

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Solution for -86=-2+7(2b-4) equation:


Simplifying
-86 = -2 + 7(2b + -4)

Reorder the terms:
-86 = -2 + 7(-4 + 2b)
-86 = -2 + (-4 * 7 + 2b * 7)
-86 = -2 + (-28 + 14b)

Combine like terms: -2 + -28 = -30
-86 = -30 + 14b

Solving
-86 = -30 + 14b

Solving for variable 'b'.

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

Add '-14b' to each side of the equation.
-86 + -14b = -30 + 14b + -14b

Combine like terms: 14b + -14b = 0
-86 + -14b = -30 + 0
-86 + -14b = -30

Add '86' to each side of the equation.
-86 + 86 + -14b = -30 + 86

Combine like terms: -86 + 86 = 0
0 + -14b = -30 + 86
-14b = -30 + 86

Combine like terms: -30 + 86 = 56
-14b = 56

Divide each side by '-14'.
b = -4

Simplifying
b = -4

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