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 - 2a = 5a - 3y - 7 for a in terms of y.
| \(\frac{1}{10}\)y + \(\frac{7}{10}\) | |
| -\(\frac{1}{7}\)y + \(\frac{2}{7}\) | |
| -\(\frac{8}{11}\)y - \(\frac{2}{11}\) | |
| \(\frac{5}{7}\)y + 1\(\frac{2}{7}\) |