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 + 9c = 2c + 7z + 1 for c in terms of z.
| \(\frac{3}{7}\)z - \(\frac{5}{7}\) | |
| -\(\frac{1}{3}\)z + \(\frac{1}{6}\) | |
| -15z + 2 | |
| \(\frac{7}{11}\)z - \(\frac{9}{11}\) |