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 - 8a = -2a - 2z + 5 for a in terms of z.
| -\(\frac{5}{7}\)z + \(\frac{2}{7}\) | |
| 1\(\frac{1}{2}\)z + 1\(\frac{1}{4}\) | |
| 3\(\frac{3}{4}\)z - \(\frac{1}{2}\) | |
| -12z + 6 |