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 -2a + 6a = -9a + 8y - 1 for a in terms of y.
| y - 2 | |
| \(\frac{2}{7}\)y - \(\frac{1}{7}\) | |
| y + \(\frac{9}{11}\) | |
| -\(\frac{1}{15}\)y + \(\frac{4}{15}\) |