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 - 4c = 5c + 2z - 8 for c in terms of z.
| 7z + 3 | |
| -3\(\frac{1}{4}\)z + 1\(\frac{3}{4}\) | |
| -5z + 6 | |
| -\(\frac{6}{7}\)z + 1\(\frac{1}{7}\) |