9(a-2)=45

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Solution for 9(a-2)=45 equation: 


Simplifying
9(a + -2) = 45

Reorder the terms:
9(-2 + a) = 45
(-2 * 9 + a * 9) = 45
(-18 + 9a) = 45

Solving
-18 + 9a = 45

Solving for variable 'a'.

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

Add '18' to each side of the equation.
-18 + 18 + 9a = 45 + 18

Combine like terms: -18 + 18 = 0
0 + 9a = 45 + 18
9a = 45 + 18

Combine like terms: 45 + 18 = 63
9a = 63

Divide each side by '9'.
a = 7

Simplifying
a = 7

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