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