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