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 + 2c = -9c + 9z - 7 for c in terms of z.
| -1\(\frac{5}{9}\)z - \(\frac{2}{3}\) | |
| z - \(\frac{1}{8}\) | |
| z - 1 | |
| \(\frac{3}{8}\)z + 1\(\frac{1}{8}\) |