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 = 8a - 8x - 1 for a in terms of x.
| \(\frac{1}{15}\)x + \(\frac{1}{15}\) | |
| \(\frac{1}{8}\)x - \(\frac{7}{8}\) | |
| -5x + 6 | |
| x + 1\(\frac{1}{2}\) |