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 8a - 9a = 4a - 6y + 8 for a in terms of y.
| -1\(\frac{3}{10}\)y + \(\frac{3}{5}\) | |
| \(\frac{3}{5}\)y + \(\frac{7}{10}\) | |
| \(\frac{3}{4}\)y + 2 | |
| -1\(\frac{1}{7}\)y - \(\frac{2}{7}\) |