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