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 - 7a = 6a - y + 1 for a in terms of y.
| y + 1\(\frac{3}{4}\) | |
| \(\frac{5}{14}\)y + \(\frac{2}{7}\) | |
| -\(\frac{3}{7}\)y - \(\frac{1}{14}\) | |
| -15y - 9 |