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 - 6c = 8c + 7z - 6 for c in terms of z.
| -\(\frac{1}{3}\)z - 1 | |
| \(\frac{6}{7}\)z + 1\(\frac{1}{7}\) | |
| -2\(\frac{1}{6}\)z + 1 | |
| -\(\frac{3}{13}\)z - \(\frac{1}{13}\) |