18-10+d=7(-d-8)

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Solution for 18-10+d=7(-d-8) equation:


Simplifying
18 + -10 + d = 7(-1d + -8)

Combine like terms: 18 + -10 = 8
8 + d = 7(-1d + -8)

Reorder the terms:
8 + d = 7(-8 + -1d)
8 + d = (-8 * 7 + -1d * 7)
8 + d = (-56 + -7d)

Solving
8 + d = -56 + -7d

Solving for variable 'd'.

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

Add '7d' to each side of the equation.
8 + d + 7d = -56 + -7d + 7d

Combine like terms: d + 7d = 8d
8 + 8d = -56 + -7d + 7d

Combine like terms: -7d + 7d = 0
8 + 8d = -56 + 0
8 + 8d = -56

Add '-8' to each side of the equation.
8 + -8 + 8d = -56 + -8

Combine like terms: 8 + -8 = 0
0 + 8d = -56 + -8
8d = -56 + -8

Combine like terms: -56 + -8 = -64
8d = -64

Divide each side by '8'.
d = -8

Simplifying
d = -8

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