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 + 6a = 9a - 2x - 1 for a in terms of x.
| \(\frac{1}{2}\)x - \(\frac{1}{2}\) | |
| -x - \(\frac{1}{2}\) | |
| \(\frac{9}{16}\)x + \(\frac{1}{4}\) | |
| \(\frac{1}{2}\)x + \(\frac{1}{16}\) |