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 6c - 7c = 7c + 6z - 3 for c in terms of z.
| -13z + 3 | |
| -3\(\frac{1}{2}\)z - 2\(\frac{1}{2}\) | |
| -\(\frac{1}{7}\)z + \(\frac{3}{7}\) | |
| -2\(\frac{1}{2}\)z + 3 |