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 10c - 6c = 9c - 5z - 1 for c in terms of z.
| -19z + 9 | |
| z - 1 | |
| \(\frac{3}{4}\)z + \(\frac{1}{2}\) | |
| 5z - 1 |