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 -8a - 7a = 9a - 4z + 5 for a in terms of z.
| 1\(\frac{1}{10}\)z + \(\frac{3}{10}\) | |
| -\(\frac{3}{17}\)z - \(\frac{5}{17}\) | |
| \(\frac{11}{14}\)z + \(\frac{1}{14}\) | |
| -5\(\frac{1}{2}\)z + 3 |