15d-8d-7=7

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Solution for 15d-8d-7=7 equation: 


Simplifying
15d + -8d + -7 = 7

Reorder the terms:
-7 + 15d + -8d = 7

Combine like terms: 15d + -8d = 7d
-7 + 7d = 7

Solving
-7 + 7d = 7

Solving for variable 'd'.

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

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

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

Combine like terms: 7 + 7 = 14
7d = 14

Divide each side by '7'.
d = 2

Simplifying
d = 2

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