42=-2d+7

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Solution for 42=-2d+7 equation:


Simplifying
42 = -2d + 7

Reorder the terms:
42 = 7 + -2d

Solving
42 = 7 + -2d

Solving for variable 'd'.

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

Add '2d' to each side of the equation.
42 + 2d = 7 + -2d + 2d

Combine like terms: -2d + 2d = 0
42 + 2d = 7 + 0
42 + 2d = 7

Add '-42' to each side of the equation.
42 + -42 + 2d = 7 + -42

Combine like terms: 42 + -42 = 0
0 + 2d = 7 + -42
2d = 7 + -42

Combine like terms: 7 + -42 = -35
2d = -35

Divide each side by '2'.
d = -17.5

Simplifying
d = -17.5

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