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 7c + 5c = 2c - 4z + 5 for c in terms of z.
| -1\(\frac{5}{11}\)z + \(\frac{7}{11}\) | |
| -2z + 3\(\frac{1}{2}\) | |
| -1\(\frac{3}{4}\)z - 1\(\frac{1}{8}\) | |
| -1\(\frac{4}{5}\)z + 1 |