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 -8c + 7c = 2c + 3z - 4 for c in terms of z.
| -\(\frac{6}{13}\)z + \(\frac{7}{13}\) | |
| \(\frac{5}{14}\)z + \(\frac{9}{14}\) | |
| -\(\frac{1}{3}\)z + \(\frac{1}{15}\) | |
| \(\frac{2}{5}\)z + \(\frac{2}{5}\) |