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 a + 3a = 8a + 3z - 6 for a in terms of z.
| -1\(\frac{5}{9}\)z + \(\frac{2}{3}\) | |
| 1\(\frac{2}{5}\)z - \(\frac{1}{5}\) | |
| z + \(\frac{6}{7}\) | |
| -\(\frac{1}{5}\)z - \(\frac{4}{5}\) |