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