12+3=8d+7

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Solution for 12+3=8d+7 equation:


Simplifying
12 + 3 = 8d + 7

Combine like terms: 12 + 3 = 15
15 = 8d + 7

Reorder the terms:
15 = 7 + 8d

Solving
15 = 7 + 8d

Solving for variable 'd'.

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

Add '-8d' to each side of the equation.
15 + -8d = 7 + 8d + -8d

Combine like terms: 8d + -8d = 0
15 + -8d = 7 + 0
15 + -8d = 7

Add '-15' to each side of the equation.
15 + -15 + -8d = 7 + -15

Combine like terms: 15 + -15 = 0
0 + -8d = 7 + -15
-8d = 7 + -15

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

Divide each side by '-8'.
d = 1

Simplifying
d = 1

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