4(3d+10)=5d-9

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Solution for 4(3d+10)=5d-9 equation:


Simplifying
4(3d + 10) = 5d + -9

Reorder the terms:
4(10 + 3d) = 5d + -9
(10 * 4 + 3d * 4) = 5d + -9
(40 + 12d) = 5d + -9

Reorder the terms:
40 + 12d = -9 + 5d

Solving
40 + 12d = -9 + 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.
40 + 12d + -5d = -9 + 5d + -5d

Combine like terms: 12d + -5d = 7d
40 + 7d = -9 + 5d + -5d

Combine like terms: 5d + -5d = 0
40 + 7d = -9 + 0
40 + 7d = -9

Add '-40' to each side of the equation.
40 + -40 + 7d = -9 + -40

Combine like terms: 40 + -40 = 0
0 + 7d = -9 + -40
7d = -9 + -40

Combine like terms: -9 + -40 = -49
7d = -49

Divide each side by '7'.
d = -7

Simplifying
d = -7

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