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 8a - a = 7a - 5z - 2 for a in terms of z.
| \(\frac{1}{11}\)z + \(\frac{3}{11}\) | |
| -4z - 2 | |
| -\(\frac{4}{7}\)z - \(\frac{1}{7}\) | |
| 1\(\frac{2}{15}\)z + \(\frac{3}{5}\) |