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 -4c - 6c = 5c - z - 7 for c in terms of z.
| -1\(\frac{1}{8}\)z - \(\frac{1}{8}\) | |
| \(\frac{4}{5}\)z - 1 | |
| -4z + 3\(\frac{1}{2}\) | |
| -\(\frac{5}{9}\)z + \(\frac{7}{9}\) |