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 - 8b = 9b + 3z + 9 for b in terms of z.
| -3\(\frac{1}{5}\)z + \(\frac{3}{5}\) | |
| -1\(\frac{1}{13}\)z - \(\frac{1}{13}\) | |
| -4\(\frac{1}{2}\)z - 1\(\frac{1}{2}\) | |
| -\(\frac{11}{16}\)z - \(\frac{9}{16}\) |