3(b-7)=-39-3b

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Solution for 3(b-7)=-39-3b equation:


Simplifying
3(b + -7) = -39 + -3b

Reorder the terms:
3(-7 + b) = -39 + -3b
(-7 * 3 + b * 3) = -39 + -3b
(-21 + 3b) = -39 + -3b

Solving
-21 + 3b = -39 + -3b

Solving for variable 'b'.

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

Add '3b' to each side of the equation.
-21 + 3b + 3b = -39 + -3b + 3b

Combine like terms: 3b + 3b = 6b
-21 + 6b = -39 + -3b + 3b

Combine like terms: -3b + 3b = 0
-21 + 6b = -39 + 0
-21 + 6b = -39

Add '21' to each side of the equation.
-21 + 21 + 6b = -39 + 21

Combine like terms: -21 + 21 = 0
0 + 6b = -39 + 21
6b = -39 + 21

Combine like terms: -39 + 21 = -18
6b = -18

Divide each side by '6'.
b = -3

Simplifying
b = -3

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