-4d+20=5d-7

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


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

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

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

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

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

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

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

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

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

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

Simplifying
d = 3

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