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 -4a + 2a = -9a - 8x - 5 for a in terms of x.
| x + 4 | |
| 10x + 7 | |
| -\(\frac{3}{13}\)x + \(\frac{9}{13}\) | |
| -2x - 1 |