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 -7b + 4b = 5b - 3z + 9 for b in terms of z.
| \(\frac{7}{12}\)z - \(\frac{3}{4}\) | |
| z - 1 | |
| 5z - 1 | |
| 5z - 7 |