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 -4c - 7c = -c + 6z - 9 for c in terms of z.
| -\(\frac{9}{14}\)z + \(\frac{5}{14}\) | |
| -2\(\frac{1}{7}\)z - 1\(\frac{2}{7}\) | |
| -\(\frac{1}{17}\)z - \(\frac{6}{17}\) | |
| -4\(\frac{1}{3}\)z + 3 |