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 - 5a = -9a - 2x + 1 for a in terms of x.
| 1\(\frac{1}{2}\)x + \(\frac{1}{2}\) | |
| \(\frac{1}{4}\)x - 2 | |
| -1\(\frac{6}{7}\)x + 1\(\frac{2}{7}\) | |
| 10x + 1 |