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 a + 4a = -3a - 8x + 7 for a in terms of x.
| -x + 9 | |
| \(\frac{1}{2}\)x - \(\frac{1}{16}\) | |
| \(\frac{7}{11}\)x - \(\frac{8}{11}\) | |
| -3x + 1\(\frac{3}{4}\) |