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 -7a + 9a = -5a - x + 2 for a in terms of x.
| -\(\frac{6}{7}\)x - 1 | |
| -1\(\frac{1}{2}\)x + 1\(\frac{1}{3}\) | |
| 5x - 1 | |
| \(\frac{2}{11}\)x + \(\frac{2}{11}\) |