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 -2b + 8b = -9b + 7z + 5 for b in terms of z.
| -\(\frac{3}{7}\)z + \(\frac{3}{14}\) | |
| -\(\frac{1}{7}\)z + \(\frac{5}{7}\) | |
| -\(\frac{1}{2}\)z - 1 | |
| 2\(\frac{1}{2}\)z + 1\(\frac{1}{6}\) |