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 a + 7a = -3a - 3y + 1 for a in terms of y.
| -\(\frac{1}{13}\)y + \(\frac{1}{13}\) | |
| -2\(\frac{1}{2}\)y + \(\frac{1}{4}\) | |
| -\(\frac{13}{17}\)y - \(\frac{3}{17}\) | |
| 16y + 4 |