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