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 -9a + 9a = 7a - 8y - 3 for a in terms of y.
| -1\(\frac{3}{10}\)y + \(\frac{1}{10}\) | |
| \(\frac{11}{13}\)y - \(\frac{5}{13}\) | |
| 1\(\frac{1}{16}\)y + \(\frac{3}{16}\) | |
| -3y + 3 |