-3b-7(-4-6b)=-7b-18

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Solution for -3b-7(-4-6b)=-7b-18 equation: 


Simplifying
-3b + -7(-4 + -6b) = -7b + -18
-3b + (-4 * -7 + -6b * -7) = -7b + -18
-3b + (28 + 42b) = -7b + -18

Reorder the terms:
28 + -3b + 42b = -7b + -18

Combine like terms: -3b + 42b = 39b
28 + 39b = -7b + -18

Reorder the terms:
28 + 39b = -18 + -7b

Solving
28 + 39b = -18 + -7b

Solving for variable 'b'.

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

Add '7b' to each side of the equation.
28 + 39b + 7b = -18 + -7b + 7b

Combine like terms: 39b + 7b = 46b
28 + 46b = -18 + -7b + 7b

Combine like terms: -7b + 7b = 0
28 + 46b = -18 + 0
28 + 46b = -18

Add '-28' to each side of the equation.
28 + -28 + 46b = -18 + -28

Combine like terms: 28 + -28 = 0
0 + 46b = -18 + -28
46b = -18 + -28

Combine like terms: -18 + -28 = -46
46b = -46

Divide each side by '46'.
b = -1

Simplifying
b = -1

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