15=-2d-7d

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


Simplifying
15 = -2d + -7d

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

Solving
15 = -9d

Solving for variable 'd'.

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

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

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

Add '-15' to each side of the equation.
15 + -15 + 9d = 0 + -15

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

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

Divide each side by '9'.
d = -1.666666667

Simplifying
d = -1.666666667

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