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 + 2a = -9a + 7y + 8 for a in terms of y.
| -\(\frac{8}{13}\)y + \(\frac{7}{13}\) | |
| 15y - 6 | |
| y - 2 | |
| \(\frac{5}{8}\)y + 1 |