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 c - 5c = 6c - x - 7 for c in terms of x.
13x + 2 | |
\(\frac{1}{2}\)x - \(\frac{9}{14}\) | |
-\(\frac{4}{5}\)x + 1\(\frac{2}{5}\) | |
\(\frac{1}{4}\)x - \(\frac{1}{2}\) |