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 -8b + 7b = 5b + 2z - 4 for b in terms of z.
| -1\(\frac{3}{14}\)z + \(\frac{3}{7}\) | |
| -\(\frac{3}{13}\)z + \(\frac{6}{13}\) | |
| \(\frac{5}{13}\)z + \(\frac{4}{13}\) | |
| -\(\frac{7}{13}\)z + \(\frac{7}{13}\) |