12a-4a-8a+a+a-2=18

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Solution for 12a-4a-8a+a+a-2=18 equation:


Simplifying
12a + -4a + -8a + a + a + -2 = 18

Reorder the terms:
-2 + 12a + -4a + -8a + a + a = 18

Combine like terms: 12a + -4a = 8a
-2 + 8a + -8a + a + a = 18

Combine like terms: 8a + -8a = 0
-2 + 0 + a + a = 18
-2 + a + a = 18

Combine like terms: a + a = 2a
-2 + 2a = 18

Solving
-2 + 2a = 18

Solving for variable 'a'.

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

Add '2' to each side of the equation.
-2 + 2 + 2a = 18 + 2

Combine like terms: -2 + 2 = 0
0 + 2a = 18 + 2
2a = 18 + 2

Combine like terms: 18 + 2 = 20
2a = 20

Divide each side by '2'.
a = 10

Simplifying
a = 10

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