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 -3b - b = -9b - 5z + 4 for b in terms of z.
| -2\(\frac{1}{7}\)z + 1\(\frac{1}{7}\) | |
| -3\(\frac{1}{2}\)z - 3 | |
| -1\(\frac{2}{7}\)z + 1\(\frac{1}{7}\) | |
| -\(\frac{2}{3}\)z + \(\frac{2}{3}\) |