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 + 9b = -7b - 8z + 2 for b in terms of z.
| 13z + 4 | |
| 8\(\frac{1}{2}\)z - 1 | |
| 1\(\frac{1}{5}\)z - 1\(\frac{4}{5}\) | |
| \(\frac{1}{4}\)z - \(\frac{1}{3}\) |