-45=9(a+12)

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Solution for -45=9(a+12) equation:


Simplifying
-45 = 9(a + 12)

Reorder the terms:
-45 = 9(12 + a)
-45 = (12 * 9 + a * 9)
-45 = (108 + 9a)

Solving
-45 = 108 + 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.
-45 + -9a = 108 + 9a + -9a

Combine like terms: 9a + -9a = 0
-45 + -9a = 108 + 0
-45 + -9a = 108

Add '45' to each side of the equation.
-45 + 45 + -9a = 108 + 45

Combine like terms: -45 + 45 = 0
0 + -9a = 108 + 45
-9a = 108 + 45

Combine like terms: 108 + 45 = 153
-9a = 153

Divide each side by '-9'.
a = -17

Simplifying
a = -17

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