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 = -4a + 3z + 3 for a in terms of z.
| 3z - 6 | |
| 1\(\frac{7}{10}\)z + \(\frac{9}{10}\) | |
| \(\frac{11}{13}\)z + \(\frac{3}{13}\) | |
| 5z - 7 |