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 -9b - 7b = -6b - 7z + 4 for b in terms of z.
| -5\(\frac{1}{3}\)z - \(\frac{1}{3}\) | |
| -\(\frac{5}{6}\)z + \(\frac{1}{6}\) | |
| 1\(\frac{1}{6}\)z - \(\frac{5}{6}\) | |
| z - 1\(\frac{1}{3}\) |