7-4d=5d-20

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Solution for 7-4d=5d-20 equation:


Simplifying
7 + -4d = 5d + -20

Reorder the terms:
7 + -4d = -20 + 5d

Solving
7 + -4d = -20 + 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 + -4d + -5d = -20 + 5d + -5d

Combine like terms: -4d + -5d = -9d
7 + -9d = -20 + 5d + -5d

Combine like terms: 5d + -5d = 0
7 + -9d = -20 + 0
7 + -9d = -20

Add '-7' to each side of the equation.
7 + -7 + -9d = -20 + -7

Combine like terms: 7 + -7 = 0
0 + -9d = -20 + -7
-9d = -20 + -7

Combine like terms: -20 + -7 = -27
-9d = -27

Divide each side by '-9'.
d = 3

Simplifying
d = 3

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