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