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 4a + 9a = 6a + 4x - 8 for a in terms of x.
| -2x + 1\(\frac{1}{5}\) | |
| 2\(\frac{1}{2}\)x + 4 | |
| 1\(\frac{6}{7}\)x + 1\(\frac{1}{7}\) | |
| \(\frac{1}{3}\)x - \(\frac{2}{3}\) |