7+d=5-d

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Solution for 7+d=5-d equation:


Simplifying
7 + d = 5 + -1d

Solving
7 + d = 5 + -1d

Solving for variable 'd'.

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

Add 'd' to each side of the equation.
7 + d + d = 5 + -1d + d

Combine like terms: d + d = 2d
7 + 2d = 5 + -1d + d

Combine like terms: -1d + d = 0
7 + 2d = 5 + 0
7 + 2d = 5

Add '-7' to each side of the equation.
7 + -7 + 2d = 5 + -7

Combine like terms: 7 + -7 = 0
0 + 2d = 5 + -7
2d = 5 + -7

Combine like terms: 5 + -7 = -2
2d = -2

Divide each side by '2'.
d = -1

Simplifying
d = -1

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