9d+7=8d+8

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Solution for 9d+7=8d+8 equation:


Simplifying
9d + 7 = 8d + 8

Reorder the terms:
7 + 9d = 8d + 8

Reorder the terms:
7 + 9d = 8 + 8d

Solving
7 + 9d = 8 + 8d

Solving for variable 'd'.

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

Add '-8d' to each side of the equation.
7 + 9d + -8d = 8 + 8d + -8d

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

Combine like terms: 8d + -8d = 0
7 + 1d = 8 + 0
7 + 1d = 8

Add '-7' to each side of the equation.
7 + -7 + 1d = 8 + -7

Combine like terms: 7 + -7 = 0
0 + 1d = 8 + -7
1d = 8 + -7

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

Divide each side by '1'.
d = 1

Simplifying
d = 1

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