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 -b + 7b = 7b + 8z + 1 for b in terms of z.
| -1\(\frac{1}{8}\)z - \(\frac{7}{8}\) | |
| 2\(\frac{1}{8}\)z + \(\frac{1}{2}\) | |
| -\(\frac{3}{8}\)z - 1 | |
| -\(\frac{1}{8}\)z - \(\frac{1}{8}\) |