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 + 3a = 8a + 5x - 8 for a in terms of x.
| -2x + 8 | |
| -\(\frac{3}{16}\)x + \(\frac{1}{2}\) | |
| -1\(\frac{1}{10}\)x + \(\frac{7}{10}\) | |
| -\(\frac{2}{3}\)x - 3 |