4a-9(3-a)=0

Solution for 4a-9(3-a)=0 equation:

Simplifying
4a + -9(3 + -1a) = 0
4a + (3 * -9 + -1a * -9) = 0
4a + (-27 + 9a) = 0

Reorder the terms:
-27 + 4a + 9a = 0

Combine like terms: 4a + 9a = 13a
-27 + 13a = 0

Solving
-27 + 13a = 0

Solving for variable 'a'.

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

Add '27' to each side of the equation.
-27 + 27 + 13a = 0 + 27

Combine like terms: -27 + 27 = 0
0 + 13a = 0 + 27
13a = 0 + 27

Combine like terms: 0 + 27 = 27
13a = 27

Divide each side by '13'.
a = 2.076923077

Simplifying
a = 2.076923077