-57=-8(5b-4)+3(b-5)

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Solution for -57=-8(5b-4)+3(b-5) equation:


Simplifying
-57 = -8(5b + -4) + 3(b + -5)

Reorder the terms:
-57 = -8(-4 + 5b) + 3(b + -5)
-57 = (-4 * -8 + 5b * -8) + 3(b + -5)
-57 = (32 + -40b) + 3(b + -5)

Reorder the terms:
-57 = 32 + -40b + 3(-5 + b)
-57 = 32 + -40b + (-5 * 3 + b * 3)
-57 = 32 + -40b + (-15 + 3b)

Reorder the terms:
-57 = 32 + -15 + -40b + 3b

Combine like terms: 32 + -15 = 17
-57 = 17 + -40b + 3b

Combine like terms: -40b + 3b = -37b
-57 = 17 + -37b

Solving
-57 = 17 + -37b

Solving for variable 'b'.

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

Add '37b' to each side of the equation.
-57 + 37b = 17 + -37b + 37b

Combine like terms: -37b + 37b = 0
-57 + 37b = 17 + 0
-57 + 37b = 17

Add '57' to each side of the equation.
-57 + 57 + 37b = 17 + 57

Combine like terms: -57 + 57 = 0
0 + 37b = 17 + 57
37b = 17 + 57

Combine like terms: 17 + 57 = 74
37b = 74

Divide each side by '37'.
b = 2

Simplifying
b = 2

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