2(d+2)-3=12-(d-1)

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Solution for 2(d+2)-3=12-(d-1) equation:


Simplifying
2(d + 2) + -3 = 12 + -1(d + -1)

Reorder the terms:
2(2 + d) + -3 = 12 + -1(d + -1)
(2 * 2 + d * 2) + -3 = 12 + -1(d + -1)
(4 + 2d) + -3 = 12 + -1(d + -1)

Reorder the terms:
4 + -3 + 2d = 12 + -1(d + -1)

Combine like terms: 4 + -3 = 1
1 + 2d = 12 + -1(d + -1)

Reorder the terms:
1 + 2d = 12 + -1(-1 + d)
1 + 2d = 12 + (-1 * -1 + d * -1)
1 + 2d = 12 + (1 + -1d)

Combine like terms: 12 + 1 = 13
1 + 2d = 13 + -1d

Solving
1 + 2d = 13 + -1d

Solving for variable 'd'.

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

Add 'd' to each side of the equation.
1 + 2d + d = 13 + -1d + d

Combine like terms: 2d + d = 3d
1 + 3d = 13 + -1d + d

Combine like terms: -1d + d = 0
1 + 3d = 13 + 0
1 + 3d = 13

Add '-1' to each side of the equation.
1 + -1 + 3d = 13 + -1

Combine like terms: 1 + -1 = 0
0 + 3d = 13 + -1
3d = 13 + -1

Combine like terms: 13 + -1 = 12
3d = 12

Divide each side by '3'.
d = 4

Simplifying
d = 4

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