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 + 3a = -8a - 8z - 3 for a in terms of z.
| -\(\frac{11}{14}\)z - \(\frac{3}{14}\) | |
| -\(\frac{3}{5}\)z - \(\frac{9}{10}\) | |
| 3z + \(\frac{1}{2}\) | |
| \(\frac{1}{2}\)z + \(\frac{9}{10}\) |