7+d=-3

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Solution for 7+d=-3 equation: 


Simplifying
7 + d = -3

Solving
7 + d = -3

Solving for variable 'd'.

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

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

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

Combine like terms: -3 + -7 = -10
d = -10

Simplifying
d = -10

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