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