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 3a + 2a = -7a + 9x - 3 for a in terms of x.
| -x - 9 | |
| \(\frac{7}{10}\)x - \(\frac{3}{10}\) | |
| -2\(\frac{1}{8}\)x - \(\frac{1}{8}\) | |
| \(\frac{1}{2}\)x - \(\frac{3}{14}\) |