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 8c + 8c = 7c + 9z + 5 for c in terms of z.
| z + 5 | |
| -\(\frac{7}{8}\)z + \(\frac{5}{16}\) | |
| -3z + 8 | |
| \(\frac{2}{11}\)z - \(\frac{7}{11}\) |