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 -2b + 7b = -8b + 9z + 7 for b in terms of z.
| \(\frac{9}{11}\)z - \(\frac{6}{11}\) | |
| -\(\frac{1}{2}\)z - \(\frac{1}{2}\) | |
| -1\(\frac{1}{2}\)z + \(\frac{3}{4}\) | |
| \(\frac{1}{3}\)z + 1\(\frac{1}{6}\) |