3d-9=7d-5

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Solution for 3d-9=7d-5 equation:


Simplifying
3d + -9 = 7d + -5

Reorder the terms:
-9 + 3d = 7d + -5

Reorder the terms:
-9 + 3d = -5 + 7d

Solving
-9 + 3d = -5 + 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 + 3d + -7d = -5 + 7d + -7d

Combine like terms: 3d + -7d = -4d
-9 + -4d = -5 + 7d + -7d

Combine like terms: 7d + -7d = 0
-9 + -4d = -5 + 0
-9 + -4d = -5

Add '9' to each side of the equation.
-9 + 9 + -4d = -5 + 9

Combine like terms: -9 + 9 = 0
0 + -4d = -5 + 9
-4d = -5 + 9

Combine like terms: -5 + 9 = 4
-4d = 4

Divide each side by '-4'.
d = -1

Simplifying
d = -1

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