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 3b - 4b = 7b + 9z - 1 for b in terms of z.
| -2z + \(\frac{3}{4}\) | |
| -3\(\frac{1}{4}\)z + \(\frac{1}{4}\) | |
| 1\(\frac{1}{5}\)z - \(\frac{1}{2}\) | |
| z + 1 |