4+2d-3d-7=12

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Solution for 4+2d-3d-7=12 equation:


Simplifying
4 + 2d + -3d + -7 = 12

Reorder the terms:
4 + -7 + 2d + -3d = 12

Combine like terms: 4 + -7 = -3
-3 + 2d + -3d = 12

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

Solving
-3 + -1d = 12

Solving for variable 'd'.

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

Add '3' to each side of the equation.
-3 + 3 + -1d = 12 + 3

Combine like terms: -3 + 3 = 0
0 + -1d = 12 + 3
-1d = 12 + 3

Combine like terms: 12 + 3 = 15
-1d = 15

Divide each side by '-1'.
d = -15

Simplifying
d = -15

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