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 9b + 2b = -7b - 5z - 1 for b in terms of z.
| z + 3 | |
| \(\frac{2}{3}\)z - \(\frac{7}{15}\) | |
| \(\frac{5}{8}\)z + \(\frac{3}{4}\) | |
| -\(\frac{7}{16}\)z - \(\frac{1}{16}\) |