-20-4d=3(5d-7)

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Solution for -20-4d=3(5d-7) equation:


Simplifying
-20 + -4d = 3(5d + -7)

Reorder the terms:
-20 + -4d = 3(-7 + 5d)
-20 + -4d = (-7 * 3 + 5d * 3)
-20 + -4d = (-21 + 15d)

Solving
-20 + -4d = -21 + 15d

Solving for variable 'd'.

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

Add '-15d' to each side of the equation.
-20 + -4d + -15d = -21 + 15d + -15d

Combine like terms: -4d + -15d = -19d
-20 + -19d = -21 + 15d + -15d

Combine like terms: 15d + -15d = 0
-20 + -19d = -21 + 0
-20 + -19d = -21

Add '20' to each side of the equation.
-20 + 20 + -19d = -21 + 20

Combine like terms: -20 + 20 = 0
0 + -19d = -21 + 20
-19d = -21 + 20

Combine like terms: -21 + 20 = -1
-19d = -1

Divide each side by '-19'.
d = 0.05263157895

Simplifying
d = 0.05263157895

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