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