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 -7b + 4b = -5b - 9z + 4 for b in terms of z.
| -1\(\frac{2}{7}\)z - 1\(\frac{1}{7}\) | |
| z - \(\frac{4}{15}\) | |
| -2\(\frac{1}{4}\)z - 1\(\frac{1}{4}\) | |
| 6\(\frac{1}{2}\)z - 2 |