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 - 8a = -3a + 9z + 5 for a in terms of z.
| 1\(\frac{1}{6}\)z + \(\frac{5}{6}\) | |
| 2\(\frac{5}{6}\)z + \(\frac{5}{6}\) | |
| \(\frac{2}{5}\)z - \(\frac{7}{15}\) | |
| \(\frac{3}{8}\)z + 1 |