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 - 7c = 9c + 6z + 3 for c in terms of z.
| -3\(\frac{1}{4}\)z - \(\frac{3}{4}\) | |
| -z - 1\(\frac{1}{3}\) | |
| -\(\frac{2}{9}\)z + \(\frac{5}{18}\) | |
| z - \(\frac{1}{4}\) |