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