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