10d+-9=2d+-15

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Solution for 10d+-9=2d+-15 equation:


Simplifying
10d + -9 = 2d + -15

Reorder the terms:
-9 + 10d = 2d + -15

Reorder the terms:
-9 + 10d = -15 + 2d

Solving
-9 + 10d = -15 + 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.
-9 + 10d + -2d = -15 + 2d + -2d

Combine like terms: 10d + -2d = 8d
-9 + 8d = -15 + 2d + -2d

Combine like terms: 2d + -2d = 0
-9 + 8d = -15 + 0
-9 + 8d = -15

Add '9' to each side of the equation.
-9 + 9 + 8d = -15 + 9

Combine like terms: -9 + 9 = 0
0 + 8d = -15 + 9
8d = -15 + 9

Combine like terms: -15 + 9 = -6
8d = -6

Divide each side by '8'.
d = -0.75

Simplifying
d = -0.75

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