d-7=5d+15

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Solution for d-7=5d+15 equation:


Simplifying
d + -7 = 5d + 15

Reorder the terms:
-7 + d = 5d + 15

Reorder the terms:
-7 + d = 15 + 5d

Solving
-7 + d = 15 + 5d

Solving for variable 'd'.

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

Add '-5d' to each side of the equation.
-7 + d + -5d = 15 + 5d + -5d

Combine like terms: d + -5d = -4d
-7 + -4d = 15 + 5d + -5d

Combine like terms: 5d + -5d = 0
-7 + -4d = 15 + 0
-7 + -4d = 15

Add '7' to each side of the equation.
-7 + 7 + -4d = 15 + 7

Combine like terms: -7 + 7 = 0
0 + -4d = 15 + 7
-4d = 15 + 7

Combine like terms: 15 + 7 = 22
-4d = 22

Divide each side by '-4'.
d = -5.5

Simplifying
d = -5.5

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