When solving an equation with two variables, replace the variables with the values given and then solve the now variable-free equation. (Remember order of operations, PEMDAS, Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.)
Solve -6c + 7c = 3c + 6z + 1 for c in terms of z.
| 9z + 6 | |
| -1\(\frac{2}{11}\)z + \(\frac{6}{11}\) | |
| \(\frac{1}{9}\)z - \(\frac{1}{9}\) | |
| z + 2\(\frac{2}{3}\) |