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 7c - 2c = -c + z - 1 for c in terms of z.
| \(\frac{3}{8}\)z - \(\frac{1}{8}\) | |
| -\(\frac{2}{13}\)z + \(\frac{2}{13}\) | |
| 2\(\frac{1}{2}\)z + 1 | |
| -\(\frac{5}{9}\)z + \(\frac{7}{9}\) |