(2d)-(7)=(8)-(3d)

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Solution for (2d)-(7)=(8)-(3d) equation:


Simplifying
(2d) + -1(7) = (8) + -1(3d)

Multiply -1 * 7
(2d) + -7 = (8) + -1(3d)

Reorder the terms:
-7 + (2d) = (8) + -1(3d)
-7 + (2d) = 8 + -1(3d)

Remove parenthesis around (3d)
-7 + (2d) = 8 + -1 * 3d

Multiply -1 * 3
-7 + (2d) = 8 + -3d

Solving
-7 + (2d) = 8 + -3d

Solving for variable 'd'.

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

Add '3d' to each side of the equation.
-7 + (2d) + 3d = 8 + -3d + 3d

Combine like terms: (2d) + 3d = 5d
-7 + 5d = 8 + -3d + 3d

Combine like terms: -3d + 3d = 0
-7 + 5d = 8 + 0
-7 + 5d = 8

Add '7' to each side of the equation.
-7 + 7 + 5d = 8 + 7

Combine like terms: -7 + 7 = 0
0 + 5d = 8 + 7
5d = 8 + 7

Combine like terms: 8 + 7 = 15
5d = 15

Divide each side by '5'.
d = 3

Simplifying
d = 3

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