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