6d+7=9d+13

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Solution for 6d+7=9d+13 equation:


Simplifying
6d + 7 = 9d + 13

Reorder the terms:
7 + 6d = 9d + 13

Reorder the terms:
7 + 6d = 13 + 9d

Solving
7 + 6d = 13 + 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 + 6d + -9d = 13 + 9d + -9d

Combine like terms: 6d + -9d = -3d
7 + -3d = 13 + 9d + -9d

Combine like terms: 9d + -9d = 0
7 + -3d = 13 + 0
7 + -3d = 13

Add '-7' to each side of the equation.
7 + -7 + -3d = 13 + -7

Combine like terms: 7 + -7 = 0
0 + -3d = 13 + -7
-3d = 13 + -7

Combine like terms: 13 + -7 = 6
-3d = 6

Divide each side by '-3'.
d = -2

Simplifying
d = -2

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