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 - 6a = a - 3y - 7 for a in terms of y.
| -\(\frac{7}{13}\)y + \(\frac{8}{13}\) | |
| -\(\frac{3}{7}\)y + 1\(\frac{1}{7}\) | |
| -\(\frac{3}{7}\)y + 1 | |
| -1\(\frac{1}{2}\)y - \(\frac{1}{10}\) |