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 -6a + a = 7a + 8y + 7 for a in terms of y.
| -\(\frac{3}{7}\)y - \(\frac{5}{7}\) | |
| 1\(\frac{4}{5}\)y - 1\(\frac{3}{5}\) | |
| -\(\frac{7}{13}\)y - \(\frac{7}{13}\) | |
| -\(\frac{7}{9}\)y - \(\frac{7}{9}\) |