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 -2a + 4a = 3a - 5z - 6 for a in terms of z.
| -11z - 5 | |
| -1\(\frac{1}{3}\)z - \(\frac{5}{12}\) | |
| 1\(\frac{4}{5}\)z + 1\(\frac{1}{5}\) | |
| -5z - 2\(\frac{2}{3}\) |