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