-12+9(2a+3)=3(a+5)

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Solution for -12+9(2a+3)=3(a+5) equation:


Simplifying
-12 + 9(2a + 3) = 3(a + 5)

Reorder the terms:
-12 + 9(3 + 2a) = 3(a + 5)
-12 + (3 * 9 + 2a * 9) = 3(a + 5)
-12 + (27 + 18a) = 3(a + 5)

Combine like terms: -12 + 27 = 15
15 + 18a = 3(a + 5)

Reorder the terms:
15 + 18a = 3(5 + a)
15 + 18a = (5 * 3 + a * 3)
15 + 18a = (15 + 3a)

Add '-15' to each side of the equation.
15 + -15 + 18a = 15 + -15 + 3a

Combine like terms: 15 + -15 = 0
0 + 18a = 15 + -15 + 3a
18a = 15 + -15 + 3a

Combine like terms: 15 + -15 = 0
18a = 0 + 3a
18a = 3a

Solving
18a = 3a

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
18a + -3a = 3a + -3a

Combine like terms: 18a + -3a = 15a
15a = 3a + -3a

Combine like terms: 3a + -3a = 0
15a = 0

Divide each side by '15'.
a = 0

Simplifying
a = 0

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