72=9a-2*1

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Solution for 72=9a-2*1 equation:


Simplifying
72 = 9a + -2 * 1

Multiply -2 * 1
72 = 9a + -2

Reorder the terms:
72 = -2 + 9a

Solving
72 = -2 + 9a

Solving for variable 'a'.

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

Add '-9a' to each side of the equation.
72 + -9a = -2 + 9a + -9a

Combine like terms: 9a + -9a = 0
72 + -9a = -2 + 0
72 + -9a = -2

Add '-72' to each side of the equation.
72 + -72 + -9a = -2 + -72

Combine like terms: 72 + -72 = 0
0 + -9a = -2 + -72
-9a = -2 + -72

Combine like terms: -2 + -72 = -74
-9a = -74

Divide each side by '-9'.
a = 8.222222222

Simplifying
a = 8.222222222

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