10d+-7=9d

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Solution for 10d+-7=9d equation:


Simplifying
10d + -7 = 9d

Reorder the terms:
-7 + 10d = 9d

Solving
-7 + 10d = 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 + 10d + -9d = 9d + -9d

Combine like terms: 10d + -9d = 1d
-7 + 1d = 9d + -9d

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

Add '7' to each side of the equation.
-7 + 7 + 1d = 0 + 7

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

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

Divide each side by '1'.
d = 7

Simplifying
d = 7

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