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 -8b + 7b = -9b + 6z - 2 for b in terms of z.
| -z + 8 | |
| -3z + 9 | |
| -10z - 5 | |
| -z - 2 |