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