57=-7(7b-3)-(7-6b)

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Solution for 57=-7(7b-3)-(7-6b) equation:


Simplifying
57 = -7(7b + -3) + -1(7 + -6b)

Reorder the terms:
57 = -7(-3 + 7b) + -1(7 + -6b)
57 = (-3 * -7 + 7b * -7) + -1(7 + -6b)
57 = (21 + -49b) + -1(7 + -6b)
57 = 21 + -49b + (7 * -1 + -6b * -1)
57 = 21 + -49b + (-7 + 6b)

Reorder the terms:
57 = 21 + -7 + -49b + 6b

Combine like terms: 21 + -7 = 14
57 = 14 + -49b + 6b

Combine like terms: -49b + 6b = -43b
57 = 14 + -43b

Solving
57 = 14 + -43b

Solving for variable 'b'.

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

Add '43b' to each side of the equation.
57 + 43b = 14 + -43b + 43b

Combine like terms: -43b + 43b = 0
57 + 43b = 14 + 0
57 + 43b = 14

Add '-57' to each side of the equation.
57 + -57 + 43b = 14 + -57

Combine like terms: 57 + -57 = 0
0 + 43b = 14 + -57
43b = 14 + -57

Combine like terms: 14 + -57 = -43
43b = -43

Divide each side by '43'.
b = -1

Simplifying
b = -1

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