3(2a-4)=9

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Solution for 3(2a-4)=9 equation:


Simplifying
3(2a + -4) = 9

Reorder the terms:
3(-4 + 2a) = 9
(-4 * 3 + 2a * 3) = 9
(-12 + 6a) = 9

Solving
-12 + 6a = 9

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 + 6a = 9 + 12

Combine like terms: -12 + 12 = 0
0 + 6a = 9 + 12
6a = 9 + 12

Combine like terms: 9 + 12 = 21
6a = 21

Divide each side by '6'.
a = 3.5

Simplifying
a = 3.5

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