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