12a-15=8a+5

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Solution for 12a-15=8a+5 equation:


Simplifying
12a + -15 = 8a + 5

Reorder the terms:
-15 + 12a = 8a + 5

Reorder the terms:
-15 + 12a = 5 + 8a

Solving
-15 + 12a = 5 + 8a

Solving for variable 'a'.

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

Add '-8a' to each side of the equation.
-15 + 12a + -8a = 5 + 8a + -8a

Combine like terms: 12a + -8a = 4a
-15 + 4a = 5 + 8a + -8a

Combine like terms: 8a + -8a = 0
-15 + 4a = 5 + 0
-15 + 4a = 5

Add '15' to each side of the equation.
-15 + 15 + 4a = 5 + 15

Combine like terms: -15 + 15 = 0
0 + 4a = 5 + 15
4a = 5 + 15

Combine like terms: 5 + 15 = 20
4a = 20

Divide each side by '4'.
a = 5

Simplifying
a = 5

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