-171=-7+4(5b-6)

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Solution for -171=-7+4(5b-6) equation:


Simplifying
-171 = -7 + 4(5b + -6)

Reorder the terms:
-171 = -7 + 4(-6 + 5b)
-171 = -7 + (-6 * 4 + 5b * 4)
-171 = -7 + (-24 + 20b)

Combine like terms: -7 + -24 = -31
-171 = -31 + 20b

Solving
-171 = -31 + 20b

Solving for variable 'b'.

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

Add '-20b' to each side of the equation.
-171 + -20b = -31 + 20b + -20b

Combine like terms: 20b + -20b = 0
-171 + -20b = -31 + 0
-171 + -20b = -31

Add '171' to each side of the equation.
-171 + 171 + -20b = -31 + 171

Combine like terms: -171 + 171 = 0
0 + -20b = -31 + 171
-20b = -31 + 171

Combine like terms: -31 + 171 = 140
-20b = 140

Divide each side by '-20'.
b = -7

Simplifying
b = -7

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