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 - 4b = 7b + z - 9 for b in terms of z.
| -2\(\frac{2}{3}\)z - 1\(\frac{1}{3}\) | |
| 14z + 1 | |
| -\(\frac{5}{16}\)z + \(\frac{9}{16}\) | |
| 1\(\frac{1}{4}\)z + \(\frac{1}{8}\) |