9a-4+3[a-11]=23

Solution for 9a-4+3[a-11]=23 equation:

Simplifying
9a + -4 + 3[a + -11] = 23

Reorder the terms:
9a + -4 + 3[-11 + a] = 23
9a + -4 + [-11 * 3 + a * 3] = 23
9a + -4 + [-33 + 3a] = 23

Reorder the terms:
-4 + -33 + 9a + 3a = 23

Combine like terms: -4 + -33 = -37
-37 + 9a + 3a = 23

Combine like terms: 9a + 3a = 12a
-37 + 12a = 23

Solving
-37 + 12a = 23

Solving for variable 'a'.

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

Add '37' to each side of the equation.
-37 + 37 + 12a = 23 + 37

Combine like terms: -37 + 37 = 0
0 + 12a = 23 + 37
12a = 23 + 37

Combine like terms: 23 + 37 = 60
12a = 60

Divide each side by '12'.
a = 5

Simplifying
a = 5