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