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 + 6a = 4a + 2z - 2 for a in terms of z.
| \(\frac{2}{3}\)z + \(\frac{1}{3}\) | |
| -3\(\frac{1}{2}\)z + 2 | |
| -\(\frac{7}{11}\)z + \(\frac{9}{11}\) | |
| -1\(\frac{2}{3}\)z - \(\frac{1}{9}\) |