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