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 7a + 6a = -6a - 7z - 5 for a in terms of z.
| \(\frac{1}{13}\)z - \(\frac{2}{13}\) | |
| -z - \(\frac{5}{13}\) | |
| \(\frac{1}{12}\)z - \(\frac{1}{12}\) | |
| 3z - 4 |