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 - 7a = 4a + y + 7 for a in terms of y.
| y - 1 | |
| \(\frac{10}{11}\)y - \(\frac{4}{11}\) | |
| -\(\frac{1}{7}\)y + 1\(\frac{2}{7}\) | |
| 2\(\frac{2}{3}\)y + 2\(\frac{1}{3}\) |