2(3a-a)=18

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Solution for 2(3a-a)=18 equation: 


Simplifying
2(3a + -1a) = 18

Combine like terms: 3a + -1a = 2a
2(2a) = 18

Remove parenthesis around (2a)
2 * 2a = 18

Multiply 2 * 2
4a = 18

Solving
4a = 18

Solving for variable 'a'.

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

Divide each side by '4'.
a = 4.5

Simplifying
a = 4.5

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