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 -5a - 7a = 2a + 8x - 8 for a in terms of x.
| -2\(\frac{1}{7}\)x + 1\(\frac{1}{7}\) | |
| \(\frac{2}{7}\)x - 1\(\frac{2}{7}\) | |
| -10x + 9 | |
| 4x - 2 |