1a-12+2a=27

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Solution for 1a-12+2a=27 equation:


Simplifying
1a + -12 + 2a = 27

Reorder the terms:
-12 + 1a + 2a = 27

Combine like terms: 1a + 2a = 3a
-12 + 3a = 27

Solving
-12 + 3a = 27

Solving for variable 'a'.

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

Add '12' to each side of the equation.
-12 + 12 + 3a = 27 + 12

Combine like terms: -12 + 12 = 0
0 + 3a = 27 + 12
3a = 27 + 12

Combine like terms: 27 + 12 = 39
3a = 39

Divide each side by '3'.
a = 13

Simplifying
a = 13

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