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 + 5b = -9b - z - 3 for b in terms of z.
| -\(\frac{1}{6}\)z - \(\frac{2}{3}\) | |
| -\(\frac{3}{8}\)z - \(\frac{3}{16}\) | |
| -4\(\frac{1}{4}\)z + 1\(\frac{1}{4}\) | |
| 2\(\frac{3}{7}\)z + \(\frac{4}{7}\) |