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 -6c - 9c = 8c + 8z + 1 for c in terms of z.
| -4z - 2 | |
| -1\(\frac{3}{14}\)z - \(\frac{1}{14}\) | |
| \(\frac{1}{11}\)z - \(\frac{2}{11}\) | |
| -\(\frac{5}{6}\)z + 1\(\frac{1}{6}\) |