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 - 6a = 9a + 7z + 4 for a in terms of z.
| 1\(\frac{3}{10}\)z + \(\frac{1}{5}\) | |
| 16z + 7 | |
| 1\(\frac{2}{3}\)z - 1\(\frac{1}{3}\) | |
| -2\(\frac{3}{5}\)z - \(\frac{4}{5}\) |