15a+-12=18a

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Solution for 15a+-12=18a equation:


Simplifying
15a + -12 = 18a

Reorder the terms:
-12 + 15a = 18a

Solving
-12 + 15a = 18a

Solving for variable 'a'.

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

Add '-18a' to each side of the equation.
-12 + 15a + -18a = 18a + -18a

Combine like terms: 15a + -18a = -3a
-12 + -3a = 18a + -18a

Combine like terms: 18a + -18a = 0
-12 + -3a = 0

Add '12' to each side of the equation.
-12 + 12 + -3a = 0 + 12

Combine like terms: -12 + 12 = 0
0 + -3a = 0 + 12
-3a = 0 + 12

Combine like terms: 0 + 12 = 12
-3a = 12

Divide each side by '-3'.
a = -4

Simplifying
a = -4

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