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