-72=3x+9

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Solution for -72=3x+9 equation:


Simplifying
-72 = 3x + 9

Reorder the terms:
-72 = 9 + 3x

Solving
-72 = 9 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
-72 + -3x = 9 + 3x + -3x

Combine like terms: 3x + -3x = 0
-72 + -3x = 9 + 0
-72 + -3x = 9

Add '72' to each side of the equation.
-72 + 72 + -3x = 9 + 72

Combine like terms: -72 + 72 = 0
0 + -3x = 9 + 72
-3x = 9 + 72

Combine like terms: 9 + 72 = 81
-3x = 81

Divide each side by '-3'.
x = -27

Simplifying
x = -27

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