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 5a - a = 2a + 7z + 1 for a in terms of z.
| -1\(\frac{1}{16}\)z - \(\frac{1}{16}\) | |
| -\(\frac{2}{9}\)z - \(\frac{1}{9}\) | |
| -\(\frac{1}{5}\)z + \(\frac{4}{5}\) | |
| 2\(\frac{2}{3}\)z + \(\frac{1}{3}\) |