7(d+3)=3(d-7)+4d

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Solution for 7(d+3)=3(d-7)+4d equation:


Simplifying
7(d + 3) = 3(d + -7) + 4d

Reorder the terms:
7(3 + d) = 3(d + -7) + 4d
(3 * 7 + d * 7) = 3(d + -7) + 4d
(21 + 7d) = 3(d + -7) + 4d

Reorder the terms:
21 + 7d = 3(-7 + d) + 4d
21 + 7d = (-7 * 3 + d * 3) + 4d
21 + 7d = (-21 + 3d) + 4d

Combine like terms: 3d + 4d = 7d
21 + 7d = -21 + 7d

Add '-7d' to each side of the equation.
21 + 7d + -7d = -21 + 7d + -7d

Combine like terms: 7d + -7d = 0
21 + 0 = -21 + 7d + -7d
21 = -21 + 7d + -7d

Combine like terms: 7d + -7d = 0
21 = -21 + 0
21 = -21

Solving
21 = -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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