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 = -4a - 8x - 1 for a in terms of x.
| x + \(\frac{1}{3}\) | |
| \(\frac{5}{8}\)x - \(\frac{3}{8}\) | |
| -\(\frac{2}{15}\)x + \(\frac{1}{15}\) | |
| \(\frac{1}{3}\)x + 1\(\frac{1}{3}\) |