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 = 6a + 7x - 4 for a in terms of x.
| \(\frac{1}{2}\)x + 1\(\frac{3}{4}\) | |
| 1\(\frac{1}{8}\)x + \(\frac{3}{8}\) | |
| -1\(\frac{3}{8}\)x + \(\frac{5}{8}\) | |
| -\(\frac{2}{13}\)x + \(\frac{4}{13}\) |