-6-9[4-8b]=-42

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Solution for -6-9[4-8b]=-42 equation:


Simplifying
-6 + -9[4 + -8b] = -42
-6 + [4 * -9 + -8b * -9] = -42
-6 + [-36 + 72b] = -42

Combine like terms: -6 + -36 = -42
-42 + 72b = -42

Add '42' to each side of the equation.
-42 + 42 + 72b = -42 + 42

Combine like terms: -42 + 42 = 0
0 + 72b = -42 + 42
72b = -42 + 42

Combine like terms: -42 + 42 = 0
72b = 0

Solving
72b = 0

Solving for variable 'b'.

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

Divide each side by '72'.
b = 0

Simplifying
b = 0

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