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