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 6a + 5a = 2a - 8z + 9 for a in terms of z.
| \(\frac{3}{5}\)z + \(\frac{4}{5}\) | |
| -\(\frac{1}{11}\)z - \(\frac{2}{11}\) | |
| 4\(\frac{1}{4}\)z + 1\(\frac{1}{2}\) | |
| -3\(\frac{1}{4}\)z + 2\(\frac{1}{4}\) |