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 + 7c = 4c - 2z + 5 for c in terms of z.
| \(\frac{13}{18}\)z - \(\frac{7}{18}\) | |
| 1\(\frac{5}{6}\)z - 1\(\frac{1}{3}\) | |
| 3\(\frac{1}{3}\)z + 2\(\frac{2}{3}\) | |
| 4\(\frac{1}{2}\)z - 2\(\frac{1}{2}\) |