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