-7=3(d-5)-d

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Solution for -7=3(d-5)-d equation:


Simplifying
-7 = 3(d + -5) + -1d

Reorder the terms:
-7 = 3(-5 + d) + -1d
-7 = (-5 * 3 + d * 3) + -1d
-7 = (-15 + 3d) + -1d

Combine like terms: 3d + -1d = 2d
-7 = -15 + 2d

Solving
-7 = -15 + 2d

Solving for variable 'd'.

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

Add '-2d' to each side of the equation.
-7 + -2d = -15 + 2d + -2d

Combine like terms: 2d + -2d = 0
-7 + -2d = -15 + 0
-7 + -2d = -15

Add '7' to each side of the equation.
-7 + 7 + -2d = -15 + 7

Combine like terms: -7 + 7 = 0
0 + -2d = -15 + 7
-2d = -15 + 7

Combine like terms: -15 + 7 = -8
-2d = -8

Divide each side by '-2'.
d = 4

Simplifying
d = 4

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