Solve the equation and state a reason for each step.

23+11a-2c=12-2c

Simplifying

23 + 11a + - 2c = 12 + - 2c

Add '2c' to each side of the equation.

23 + 11a + - 2c + 2c = 12 + - 2c + 2c

Combine like terms: - 2c + 2c = 0

23 + 11a + 0 = 12 + - 2c + 2c

23 + 11a = 12 + - 2c + 2c

Combine like terms: - 2c + 2c = 0

23 + 11a = 12 + 0

23 + 11a = 12

Solving

23 + 11a = 12

Solving for variable 'a'.

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

Add '-23' to each side of the equation.

23 + - 23 + 11a = 12 + - 23

Combine like terms: 23 + - 23 = 0

0 + 11a = 12 + - 23

11a = 12 + - 23

Combine like terms: 12 + - 23 = - 11

11a = - 11

Divide each side by '11'.

a = - 1

Simplifying

a = - 1