18-11=d

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Solution for 18-11=d equation:


Simplifying
18 + -11 = d

Combine like terms: 18 + -11 = 7
7 = d

Solving
7 = d

Solving for variable 'd'.

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

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

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

Add '-7' to each side of the equation.
7 + -7 + -1d = 0 + -7

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

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

Divide each side by '-1'.
d = 7

Simplifying
d = 7

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