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 - 7b = -7b + 8z + 5 for b in terms of z.
| \(\frac{2}{5}\)z + \(\frac{2}{15}\) | |
| -1\(\frac{3}{10}\)z - \(\frac{3}{5}\) | |
| 2\(\frac{3}{7}\)z + 1\(\frac{2}{7}\) | |
| 2\(\frac{1}{2}\)z + \(\frac{5}{6}\) |