15d-6(2d-5)-7=

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Solution for 15d-6(2d-5)-7= equation:


Simplifying
15d + -6(2d + -5) + -7 = 0

Reorder the terms:
15d + -6(-5 + 2d) + -7 = 0
15d + (-5 * -6 + 2d * -6) + -7 = 0
15d + (30 + -12d) + -7 = 0

Reorder the terms:
30 + -7 + 15d + -12d = 0

Combine like terms: 30 + -7 = 23
23 + 15d + -12d = 0

Combine like terms: 15d + -12d = 3d
23 + 3d = 0

Solving
23 + 3d = 0

Solving for variable 'd'.

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

Add '-23' to each side of the equation.
23 + -23 + 3d = 0 + -23

Combine like terms: 23 + -23 = 0
0 + 3d = 0 + -23
3d = 0 + -23

Combine like terms: 0 + -23 = -23
3d = -23

Divide each side by '3'.
d = -7.666666667

Simplifying
d = -7.666666667

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