-7-8d=-18-9d

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Solution for -7-8d=-18-9d equation:


Simplifying
-7 + -8d = -18 + -9d

Solving
-7 + -8d = -18 + -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.
-7 + -8d + 9d = -18 + -9d + 9d

Combine like terms: -8d + 9d = 1d
-7 + 1d = -18 + -9d + 9d

Combine like terms: -9d + 9d = 0
-7 + 1d = -18 + 0
-7 + 1d = -18

Add '7' to each side of the equation.
-7 + 7 + 1d = -18 + 7

Combine like terms: -7 + 7 = 0
0 + 1d = -18 + 7
1d = -18 + 7

Combine like terms: -18 + 7 = -11
1d = -11

Divide each side by '1'.
d = -11

Simplifying
d = -11

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