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 3c - c = 4c - 5z - 7 for c in terms of z.
| -1\(\frac{1}{5}\)z + \(\frac{4}{5}\) | |
| 4z + 7 | |
| 10z - 1 | |
| -\(\frac{5}{16}\)z + \(\frac{7}{16}\) |