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 = 8b + 8z - 3 for b in terms of z.
| -4z + 5 | |
| -\(\frac{2}{3}\)z - \(\frac{1}{3}\) | |
| 15z - 3 | |
| 2z - 8 |