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 - 7x + 5 for a in terms of x.
| -8x + 2\(\frac{1}{2}\) | |
| \(\frac{1}{2}\)x + \(\frac{9}{10}\) | |
| \(\frac{7}{13}\)x - \(\frac{4}{13}\) | |
| 1\(\frac{1}{2}\)x - 1\(\frac{3}{4}\) |