3=2c-9

Solution for 3=2c-9 equation:

Simplifying
3 = 2c + -9

Reorder the terms:
3 = -9 + 2c

Solving
3 = -9 + 2c

Solving for variable 'c'.

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

Add '-2c' to each side of the equation.
3 + -2c = -9 + 2c + -2c

Combine like terms: 2c + -2c = 0
3 + -2c = -9 + 0
3 + -2c = -9

Add '-3' to each side of the equation.
3 + -3 + -2c = -9 + -3

Combine like terms: 3 + -3 = 0
0 + -2c = -9 + -3
-2c = -9 + -3

Combine like terms: -9 + -3 = -12
-2c = -12

Divide each side by '-2'.
c = 6

Simplifying
c = 6