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