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 = 2a - 9x - 5 for a in terms of x.
| -2\(\frac{4}{5}\)x - 1 | |
| 4x + 2 | |
| \(\frac{1}{2}\)x - \(\frac{2}{5}\) | |
| 3\(\frac{1}{2}\)x - 3\(\frac{1}{2}\) |