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 + 9c = 8c - 3z - 9 for c in terms of z.
| 7\(\frac{1}{2}\)z + 1\(\frac{1}{2}\) | |
| 6z - 2 | |
| \(\frac{12}{17}\)z + \(\frac{9}{17}\) | |
| 1\(\frac{1}{4}\)z + 1\(\frac{1}{2}\) |