57=b+b+4+2(b-3)

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Solution for 57=b+b+4+2(b-3) equation:


Simplifying
57 = b + b + 4 + 2(b + -3)

Reorder the terms:
57 = b + b + 4 + 2(-3 + b)
57 = b + b + 4 + (-3 * 2 + b * 2)
57 = b + b + 4 + (-6 + 2b)

Reorder the terms:
57 = 4 + -6 + b + b + 2b

Combine like terms: 4 + -6 = -2
57 = -2 + b + b + 2b

Combine like terms: b + b = 2b
57 = -2 + 2b + 2b

Combine like terms: 2b + 2b = 4b
57 = -2 + 4b

Solving
57 = -2 + 4b

Solving for variable 'b'.

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

Add '-4b' to each side of the equation.
57 + -4b = -2 + 4b + -4b

Combine like terms: 4b + -4b = 0
57 + -4b = -2 + 0
57 + -4b = -2

Add '-57' to each side of the equation.
57 + -57 + -4b = -2 + -57

Combine like terms: 57 + -57 = 0
0 + -4b = -2 + -57
-4b = -2 + -57

Combine like terms: -2 + -57 = -59
-4b = -59

Divide each side by '-4'.
b = 14.75

Simplifying
b = 14.75

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