7c+21=C+6

Solution for 7c+21=C+6 equation:

Simplifying
7c + 21 = C + 6

Reorder the terms:
21 + 7c = C + 6

Reorder the terms:
21 + 7c = 6 + C

Solving
21 + 7c = 6 + C

Solving for variable 'c'.

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

Add '-21' to each side of the equation.
21 + -21 + 7c = 6 + -21 + C

Combine like terms: 21 + -21 = 0
0 + 7c = 6 + -21 + C
7c = 6 + -21 + C

Combine like terms: 6 + -21 = -15
7c = -15 + C

Divide each side by '7'.
c = -2.142857143 + 0.1428571429C

Simplifying
c = -2.142857143 + 0.1428571429C