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 4c - 3c = 3c + 7z + 9 for c in terms of z.
| -5z - 3 | |
| 10z + 9 | |
| -1\(\frac{2}{7}\)z + \(\frac{3}{7}\) | |
| 3\(\frac{3}{4}\)z - 2 |