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 -2c + 7c = 7c - 5z - 1 for c in terms of z.
| 2z - \(\frac{1}{5}\) | |
| 1\(\frac{1}{3}\)z + \(\frac{1}{9}\) | |
| \(\frac{9}{13}\)z - \(\frac{2}{13}\) | |
| \(\frac{4}{5}\)z + 1\(\frac{1}{5}\) |