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 2c + 8c = 4c - 7z - 3 for c in terms of z.
| z + 4\(\frac{1}{2}\) | |
| -2z - 2\(\frac{2}{3}\) | |
| 7\(\frac{1}{2}\)z + 1\(\frac{1}{2}\) | |
| 6\(\frac{1}{2}\)z + 4\(\frac{1}{2}\) |