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 -c + 8c = 5c - 9x - 7 for c in terms of x.
| 2\(\frac{5}{6}\)x + 1\(\frac{1}{6}\) | |
| -\(\frac{3}{8}\)x - \(\frac{1}{4}\) | |
| -15x - 9 | |
| \(\frac{9}{14}\)x - \(\frac{3}{14}\) |