-7(3+3b)=-6-6b

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


Simplifying
-7(3 + 3b) = -6 + -6b
(3 * -7 + 3b * -7) = -6 + -6b
(-21 + -21b) = -6 + -6b

Solving
-21 + -21b = -6 + -6b

Solving for variable 'b'.

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

Add '6b' to each side of the equation.
-21 + -21b + 6b = -6 + -6b + 6b

Combine like terms: -21b + 6b = -15b
-21 + -15b = -6 + -6b + 6b

Combine like terms: -6b + 6b = 0
-21 + -15b = -6 + 0
-21 + -15b = -6

Add '21' to each side of the equation.
-21 + 21 + -15b = -6 + 21

Combine like terms: -21 + 21 = 0
0 + -15b = -6 + 21
-15b = -6 + 21

Combine like terms: -6 + 21 = 15
-15b = 15

Divide each side by '-15'.
b = -1

Simplifying
b = -1

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