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 7a - a = a + 8y + 5 for a in terms of y.
| 1\(\frac{1}{2}\)y + \(\frac{5}{6}\) | |
| -\(\frac{1}{3}\)y - 2\(\frac{2}{3}\) | |
| -8y - 3 | |
| \(\frac{4}{15}\)y + \(\frac{1}{3}\) |