15a-5=12a+4

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Solution for 15a-5=12a+4 equation:


Simplifying
15a + -5 = 12a + 4

Reorder the terms:
-5 + 15a = 12a + 4

Reorder the terms:
-5 + 15a = 4 + 12a

Solving
-5 + 15a = 4 + 12a

Solving for variable 'a'.

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

Add '-12a' to each side of the equation.
-5 + 15a + -12a = 4 + 12a + -12a

Combine like terms: 15a + -12a = 3a
-5 + 3a = 4 + 12a + -12a

Combine like terms: 12a + -12a = 0
-5 + 3a = 4 + 0
-5 + 3a = 4

Add '5' to each side of the equation.
-5 + 5 + 3a = 4 + 5

Combine like terms: -5 + 5 = 0
0 + 3a = 4 + 5
3a = 4 + 5

Combine like terms: 4 + 5 = 9
3a = 9

Divide each side by '3'.
a = 3

Simplifying
a = 3

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