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 -5a + 8a = -7a - 9y - 8 for a in terms of y.
| \(\frac{1}{12}\)y - \(\frac{1}{4}\) | |
| -8\(\frac{1}{2}\)y - 4 | |
| -1\(\frac{4}{11}\)y + \(\frac{2}{11}\) | |
| \(\frac{4}{7}\)y + 1\(\frac{1}{7}\) |