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 3a + 5a = -5a + 8z - 2 for a in terms of z.
| -7\(\frac{1}{2}\)z - 4\(\frac{1}{2}\) | |
| -\(\frac{1}{13}\)z + \(\frac{6}{13}\) | |
| \(\frac{4}{9}\)z + \(\frac{1}{9}\) | |
| \(\frac{3}{8}\)z - \(\frac{1}{4}\) |