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 8c - 5c = -9c - 4z + 7 for c in terms of z.
| -\(\frac{1}{5}\)z - \(\frac{7}{10}\) | |
| \(\frac{1}{17}\)z + \(\frac{7}{17}\) | |
| -6z - 4 | |
| -2\(\frac{2}{3}\)z + \(\frac{1}{2}\) |