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 + 9b = 2b + 3z - 5 for b in terms of z.
| -1\(\frac{5}{7}\)z + \(\frac{4}{7}\) | |
| 2\(\frac{2}{3}\)z - 1\(\frac{1}{3}\) | |
| -\(\frac{1}{12}\)z - \(\frac{1}{4}\) | |
| 1\(\frac{1}{2}\)z + 1\(\frac{1}{4}\) |