-3b-(6b+12)=-9b+13

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Solution for -3b-(6b+12)=-9b+13 equation: 


Simplifying
-3b + -1(6b + 12) = -9b + 13

Reorder the terms:
-3b + -1(12 + 6b) = -9b + 13
-3b + (12 * -1 + 6b * -1) = -9b + 13
-3b + (-12 + -6b) = -9b + 13

Reorder the terms:
-12 + -3b + -6b = -9b + 13

Combine like terms: -3b + -6b = -9b
-12 + -9b = -9b + 13

Reorder the terms:
-12 + -9b = 13 + -9b

Add '9b' to each side of the equation.
-12 + -9b + 9b = 13 + -9b + 9b

Combine like terms: -9b + 9b = 0
-12 + 0 = 13 + -9b + 9b
-12 = 13 + -9b + 9b

Combine like terms: -9b + 9b = 0
-12 = 13 + 0
-12 = 13

Solving
-12 = 13

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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