-18d-20=19-15d

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Solution for -18d-20=19-15d equation:


Simplifying
-18d + -20 = 19 + -15d

Reorder the terms:
-20 + -18d = 19 + -15d

Solving
-20 + -18d = 19 + -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 + -18d + 15d = 19 + -15d + 15d

Combine like terms: -18d + 15d = -3d
-20 + -3d = 19 + -15d + 15d

Combine like terms: -15d + 15d = 0
-20 + -3d = 19 + 0
-20 + -3d = 19

Add '20' to each side of the equation.
-20 + 20 + -3d = 19 + 20

Combine like terms: -20 + 20 = 0
0 + -3d = 19 + 20
-3d = 19 + 20

Combine like terms: 19 + 20 = 39
-3d = 39

Divide each side by '-3'.
d = -13

Simplifying
d = -13

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