4(a-6)-4=42.3

Solution for 4(a-6)-4=42.3 equation:

Simplifying
4(a + -6) + -4 = 42.3

Reorder the terms:
4(-6 + a) + -4 = 42.3
(-6 * 4 + a * 4) + -4 = 42.3
(-24 + 4a) + -4 = 42.3

Reorder the terms:
-24 + -4 + 4a = 42.3

Combine like terms: -24 + -4 = -28
-28 + 4a = 42.3

Solving
-28 + 4a = 42.3

Solving for variable 'a'.

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

Add '28' to each side of the equation.
-28 + 28 + 4a = 42.3 + 28

Combine like terms: -28 + 28 = 0
0 + 4a = 42.3 + 28
4a = 42.3 + 28

Combine like terms: 42.3 + 28 = 70.3
4a = 70.3

Divide each side by '4'.
a = 17.575

Simplifying
a = 17.575