-9+3(1+6c)=23

Solution for -9+3(1+6c)=23 equation:

Simplifying
-9 + 3(1 + 6c) = 23
-9 + (1 * 3 + 6c * 3) = 23
-9 + (3 + 18c) = 23

Combine like terms: -9 + 3 = -6
-6 + 18c = 23

Solving
-6 + 18c = 23

Solving for variable 'c'.

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

Add '6' to each side of the equation.
-6 + 6 + 18c = 23 + 6

Combine like terms: -6 + 6 = 0
0 + 18c = 23 + 6
18c = 23 + 6

Combine like terms: 23 + 6 = 29
18c = 29

Divide each side by '18'.
c = 1.611111111

Simplifying
c = 1.611111111