7d+15=6-2d

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Solution for 7d+15=6-2d equation:


Simplifying
7d + 15 = 6 + -2d

Reorder the terms:
15 + 7d = 6 + -2d

Solving
15 + 7d = 6 + -2d

Solving for variable 'd'.

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

Add '2d' to each side of the equation.
15 + 7d + 2d = 6 + -2d + 2d

Combine like terms: 7d + 2d = 9d
15 + 9d = 6 + -2d + 2d

Combine like terms: -2d + 2d = 0
15 + 9d = 6 + 0
15 + 9d = 6

Add '-15' to each side of the equation.
15 + -15 + 9d = 6 + -15

Combine like terms: 15 + -15 = 0
0 + 9d = 6 + -15
9d = 6 + -15

Combine like terms: 6 + -15 = -9
9d = -9

Divide each side by '9'.
d = -1

Simplifying
d = -1

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