7(6d+15)+3(15d-8)=

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Solution for 7(6d+15)+3(15d-8)= equation:


Simplifying
7(6d + 15) + 3(15d + -8) = 0

Reorder the terms:
7(15 + 6d) + 3(15d + -8) = 0
(15 * 7 + 6d * 7) + 3(15d + -8) = 0
(105 + 42d) + 3(15d + -8) = 0

Reorder the terms:
105 + 42d + 3(-8 + 15d) = 0
105 + 42d + (-8 * 3 + 15d * 3) = 0
105 + 42d + (-24 + 45d) = 0

Reorder the terms:
105 + -24 + 42d + 45d = 0

Combine like terms: 105 + -24 = 81
81 + 42d + 45d = 0

Combine like terms: 42d + 45d = 87d
81 + 87d = 0

Solving
81 + 87d = 0

Solving for variable 'd'.

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

Add '-81' to each side of the equation.
81 + -81 + 87d = 0 + -81

Combine like terms: 81 + -81 = 0
0 + 87d = 0 + -81
87d = 0 + -81

Combine like terms: 0 + -81 = -81
87d = -81

Divide each side by '87'.
d = -0.9310344828

Simplifying
d = -0.9310344828

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