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 - 7a = -3a + 9x - 5 for a in terms of x.
| -2\(\frac{2}{3}\)x + \(\frac{5}{6}\) | |
| \(\frac{2}{3}\)x + \(\frac{2}{15}\) | |
| -10x + 6 | |
| -7x - 2 |