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 + 7a = -3a - 5z + 7 for a in terms of z.
| -z + \(\frac{7}{12}\) | |
| 6z + 1 | |
| z - \(\frac{1}{14}\) | |
| 6z - 2 |