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 -6b + 9b = 3b - 7z + 9 for b in terms of z.
| z - 8 | |
| 4\(\frac{2}{3}\)z + 3 | |
| -10z + 6 | |
| 1\(\frac{7}{9}\)z - 1 |