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