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 + 5a = 7a + 8x + 2 for a in terms of x.
| -10x - 2 | |
| -x - \(\frac{2}{3}\) | |
| \(\frac{3}{16}\)x - \(\frac{3}{16}\) | |
| \(\frac{7}{12}\)x + \(\frac{1}{6}\) |