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 - 7b = 8b - 9z - 8 for b in terms of z.
| 1\(\frac{2}{5}\)z + \(\frac{1}{5}\) | |
| -16z + 5 | |
| \(\frac{2}{15}\)z + \(\frac{8}{15}\) | |
| \(\frac{1}{3}\)z + \(\frac{1}{3}\) |