4a-2a=12+8

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


Simplifying
4a + -2a = 12 + 8

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

Combine like terms: 12 + 8 = 20
2a = 20

Solving
2a = 20

Solving for variable 'a'.

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

Divide each side by '2'.
a = 10

Simplifying
a = 10

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