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 - 2b = -4b + 7z - 8 for b in terms of z.
| -2z + \(\frac{1}{3}\) | |
| 1\(\frac{2}{7}\)z - 1\(\frac{1}{7}\) | |
| -3\(\frac{1}{2}\)z - 3\(\frac{1}{2}\) | |
| 1\(\frac{1}{4}\)z + 2\(\frac{1}{4}\) |