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 - a = -7a + 3x + 6 for a in terms of x.
| -\(\frac{1}{2}\)x - 4\(\frac{1}{2}\) | |
| -2x - 3 | |
| -\(\frac{1}{3}\)x + \(\frac{7}{15}\) | |
| -10x - 9 |