15d+9=7d+65

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Solution for 15d+9=7d+65 equation:


Simplifying
15d + 9 = 7d + 65

Reorder the terms:
9 + 15d = 7d + 65

Reorder the terms:
9 + 15d = 65 + 7d

Solving
9 + 15d = 65 + 7d

Solving for variable 'd'.

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

Add '-7d' to each side of the equation.
9 + 15d + -7d = 65 + 7d + -7d

Combine like terms: 15d + -7d = 8d
9 + 8d = 65 + 7d + -7d

Combine like terms: 7d + -7d = 0
9 + 8d = 65 + 0
9 + 8d = 65

Add '-9' to each side of the equation.
9 + -9 + 8d = 65 + -9

Combine like terms: 9 + -9 = 0
0 + 8d = 65 + -9
8d = 65 + -9

Combine like terms: 65 + -9 = 56
8d = 56

Divide each side by '8'.
d = 7

Simplifying
d = 7

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