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 5c + 9c = -3c - 7z - 7 for c in terms of z.
| \(\frac{4}{11}\)z + \(\frac{3}{11}\) | |
| -\(\frac{1}{2}\)z + 1\(\frac{3}{4}\) | |
| -2z - \(\frac{7}{8}\) | |
| 4\(\frac{1}{2}\)z - 4\(\frac{1}{2}\) |