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 -2a + 9a = 2a + 3y - 2 for a in terms of y.
| -3\(\frac{1}{2}\)y - \(\frac{1}{2}\) | |
| \(\frac{11}{13}\)y + \(\frac{2}{13}\) | |
| 15y - 8 | |
| 1\(\frac{1}{2}\)y + \(\frac{1}{2}\) |