7x-12+2d+3=18

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Solution for 7x-12+2d+3=18 equation:


Simplifying
7x + -12 + 2d + 3 = 18

Reorder the terms:
-12 + 3 + 2d + 7x = 18

Combine like terms: -12 + 3 = -9
-9 + 2d + 7x = 18

Solving
-9 + 2d + 7x = 18

Solving for variable 'd'.

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

Add '9' to each side of the equation.
-9 + 2d + 9 + 7x = 18 + 9

Reorder the terms:
-9 + 9 + 2d + 7x = 18 + 9

Combine like terms: -9 + 9 = 0
0 + 2d + 7x = 18 + 9
2d + 7x = 18 + 9

Combine like terms: 18 + 9 = 27
2d + 7x = 27

Add '-7x' to each side of the equation.
2d + 7x + -7x = 27 + -7x

Combine like terms: 7x + -7x = 0
2d + 0 = 27 + -7x
2d = 27 + -7x

Divide each side by '2'.
d = 13.5 + -3.5x

Simplifying
d = 13.5 + -3.5x

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