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 -6a - 8a = -a - 7z - 7 for a in terms of z.
| z + \(\frac{4}{5}\) | |
| 1\(\frac{1}{5}\)z + \(\frac{2}{5}\) | |
| 1\(\frac{2}{11}\)z + \(\frac{8}{11}\) | |
| -\(\frac{1}{5}\)z + 1\(\frac{2}{5}\) |