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 + 8a = -2a + 8z + 2 for a in terms of z.
| \(\frac{1}{2}\)z + \(\frac{7}{10}\) | |
| \(\frac{6}{13}\)z + \(\frac{9}{13}\) | |
| -\(\frac{13}{14}\)z + \(\frac{4}{7}\) | |
| z + \(\frac{2}{5}\) |