7m+4d+9+3m-2d-5=4

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Solution for 7m+4d+9+3m-2d-5=4 equation:


Simplifying
7m + 4d + 9 + 3m + -2d + -5 = 4

Reorder the terms:
9 + -5 + 4d + -2d + 7m + 3m = 4

Combine like terms: 9 + -5 = 4
4 + 4d + -2d + 7m + 3m = 4

Combine like terms: 4d + -2d = 2d
4 + 2d + 7m + 3m = 4

Combine like terms: 7m + 3m = 10m
4 + 2d + 10m = 4

Add '-4' to each side of the equation.
4 + 2d + -4 + 10m = 4 + -4

Reorder the terms:
4 + -4 + 2d + 10m = 4 + -4

Combine like terms: 4 + -4 = 0
0 + 2d + 10m = 4 + -4
2d + 10m = 4 + -4

Combine like terms: 4 + -4 = 0
2d + 10m = 0

Solving
2d + 10m = 0

Solving for variable 'd'.

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

Add '-10m' to each side of the equation.
2d + 10m + -10m = 0 + -10m

Combine like terms: 10m + -10m = 0
2d + 0 = 0 + -10m
2d = 0 + -10m
Remove the zero:
2d = -10m

Divide each side by '2'.
d = -5m

Simplifying
d = -5m

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