19d-7(8d+12)=19-20d-1

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Solution for 19d-7(8d+12)=19-20d-1 equation:


Simplifying
19d + -7(8d + 12) = 19 + -20d + -1

Reorder the terms:
19d + -7(12 + 8d) = 19 + -20d + -1
19d + (12 * -7 + 8d * -7) = 19 + -20d + -1
19d + (-84 + -56d) = 19 + -20d + -1

Reorder the terms:
-84 + 19d + -56d = 19 + -20d + -1

Combine like terms: 19d + -56d = -37d
-84 + -37d = 19 + -20d + -1

Reorder the terms:
-84 + -37d = 19 + -1 + -20d

Combine like terms: 19 + -1 = 18
-84 + -37d = 18 + -20d

Solving
-84 + -37d = 18 + -20d

Solving for variable 'd'.

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

Add '20d' to each side of the equation.
-84 + -37d + 20d = 18 + -20d + 20d

Combine like terms: -37d + 20d = -17d
-84 + -17d = 18 + -20d + 20d

Combine like terms: -20d + 20d = 0
-84 + -17d = 18 + 0
-84 + -17d = 18

Add '84' to each side of the equation.
-84 + 84 + -17d = 18 + 84

Combine like terms: -84 + 84 = 0
0 + -17d = 18 + 84
-17d = 18 + 84

Combine like terms: 18 + 84 = 102
-17d = 102

Divide each side by '-17'.
d = -6

Simplifying
d = -6

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