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