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 = 3b + 6z - 4 for b in terms of z.
| -6z - 5 | |
| 5z - 1\(\frac{2}{3}\) | |
| z + \(\frac{1}{3}\) | |
| -z + \(\frac{2}{5}\) |