b-3(b-4(1-b))=54

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Solution for b-3(b-4(1-b))=54 equation:


Simplifying
b + -3(b + -4(1 + -1b)) = 54
b + -3(b + (1 * -4 + -1b * -4)) = 54
b + -3(b + (-4 + 4b)) = 54

Reorder the terms:
b + -3(-4 + b + 4b) = 54

Combine like terms: b + 4b = 5b
b + -3(-4 + 5b) = 54
b + (-4 * -3 + 5b * -3) = 54
b + (12 + -15b) = 54

Reorder the terms:
12 + b + -15b = 54

Combine like terms: b + -15b = -14b
12 + -14b = 54

Solving
12 + -14b = 54

Solving for variable 'b'.

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

Add '-12' to each side of the equation.
12 + -12 + -14b = 54 + -12

Combine like terms: 12 + -12 = 0
0 + -14b = 54 + -12
-14b = 54 + -12

Combine like terms: 54 + -12 = 42
-14b = 42

Divide each side by '-14'.
b = -3

Simplifying
b = -3

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