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 -9c - 4c = 4c - 6z + 7 for c in terms of z.
| 3z - 1 | |
| 11z - 5 | |
| -2z + 9 | |
| \(\frac{2}{13}\)z - \(\frac{7}{13}\) |