c-2(c-40)=

Solution for c-2(c-40)= equation:

Simplifying
c + -2(c + -40) = 0

Reorder the terms:
c + -2(-40 + c) = 0
c + (-40 * -2 + c * -2) = 0
c + (80 + -2c) = 0

Reorder the terms:
80 + c + -2c = 0

Combine like terms: c + -2c = -1c
80 + -1c = 0

Solving
80 + -1c = 0

Solving for variable 'c'.

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

Add '-80' to each side of the equation.
80 + -80 + -1c = 0 + -80

Combine like terms: 80 + -80 = 0
0 + -1c = 0 + -80
-1c = 0 + -80

Combine like terms: 0 + -80 = -80
-1c = -80

Divide each side by '-1'.
c = 80

Simplifying
c = 80