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