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