72-79=X

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Solution for 72-79=X equation:


Simplifying
72 + -79 = X

Combine like terms: 72 + -79 = -7
-7 = X

Solving
-7 = X

Solving for variable 'X'.

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

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

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

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

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

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

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

Simplifying
X = -7

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