10-d=7

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Solution for 10-d=7 equation: 


Simplifying
10 + -1d = 7

Solving
10 + -1d = 7

Solving for variable 'd'.

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

Add '-10' to each side of the equation.
10 + -10 + -1d = 7 + -10

Combine like terms: 10 + -10 = 0
0 + -1d = 7 + -10
-1d = 7 + -10

Combine like terms: 7 + -10 = -3
-1d = -3

Divide each side by '-1'.
d = 3

Simplifying
d = 3

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