3=7-2d

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Solution for 3=7-2d equation:


Simplifying
3 = 7 + -2d

Solving
3 = 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.
3 + 2d = 7 + -2d + 2d

Combine like terms: -2d + 2d = 0
3 + 2d = 7 + 0
3 + 2d = 7

Add '-3' to each side of the equation.
3 + -3 + 2d = 7 + -3

Combine like terms: 3 + -3 = 0
0 + 2d = 7 + -3
2d = 7 + -3

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

Divide each side by '2'.
d = 2

Simplifying
d = 2

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