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 + 7c = -7c + 2z - 9 for c in terms of z.
| -1\(\frac{1}{5}\)z - \(\frac{1}{5}\) | |
| z + 9 | |
| \(\frac{3}{11}\)z - \(\frac{1}{11}\) | |
| -5z - 9 |