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 c + 7c = 6c + 8z + 8 for c in terms of z.
| 1\(\frac{2}{11}\)z + \(\frac{5}{11}\) | |
| 2\(\frac{1}{8}\)z - 1\(\frac{1}{8}\) | |
| -\(\frac{3}{10}\)z - \(\frac{1}{5}\) | |
| -\(\frac{1}{5}\)z - 1\(\frac{3}{5}\) |