5(a-9)=45

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Solution for 5(a-9)=45 equation: 


Simplifying
5(a + -9) = 45

Reorder the terms:
5(-9 + a) = 45
(-9 * 5 + a * 5) = 45
(-45 + 5a) = 45

Solving
-45 + 5a = 45

Solving for variable 'a'.

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

Add '45' to each side of the equation.
-45 + 45 + 5a = 45 + 45

Combine like terms: -45 + 45 = 0
0 + 5a = 45 + 45
5a = 45 + 45

Combine like terms: 45 + 45 = 90
5a = 90

Divide each side by '5'.
a = 18

Simplifying
a = 18

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