9-3(2a-4)=

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


Simplifying
9 + -3(2a + -4) = 0

Reorder the terms:
9 + -3(-4 + 2a) = 0
9 + (-4 * -3 + 2a * -3) = 0
9 + (12 + -6a) = 0

Combine like terms: 9 + 12 = 21
21 + -6a = 0

Solving
21 + -6a = 0

Solving for variable 'a'.

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

Add '-21' to each side of the equation.
21 + -21 + -6a = 0 + -21

Combine like terms: 21 + -21 = 0
0 + -6a = 0 + -21
-6a = 0 + -21

Combine like terms: 0 + -21 = -21
-6a = -21

Divide each side by '-6'.
a = 3.5

Simplifying
a = 3.5

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