-13d-12=-3(d+7)-10d

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Solution for -13d-12=-3(d+7)-10d equation: 


Simplifying
-13d + -12 = -3(d + 7) + -10d

Reorder the terms:
-12 + -13d = -3(d + 7) + -10d

Reorder the terms:
-12 + -13d = -3(7 + d) + -10d
-12 + -13d = (7 * -3 + d * -3) + -10d
-12 + -13d = (-21 + -3d) + -10d

Combine like terms: -3d + -10d = -13d
-12 + -13d = -21 + -13d

Add '13d' to each side of the equation.
-12 + -13d + 13d = -21 + -13d + 13d

Combine like terms: -13d + 13d = 0
-12 + 0 = -21 + -13d + 13d
-12 = -21 + -13d + 13d

Combine like terms: -13d + 13d = 0
-12 = -21 + 0
-12 = -21

Solving
-12 = -21

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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