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