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 2b - 4b = -7b - z - 7 for b in terms of z.
| -2z + 1 | |
| -1\(\frac{1}{6}\)z - \(\frac{2}{3}\) | |
| \(\frac{2}{15}\)z + \(\frac{3}{5}\) | |
| \(\frac{1}{3}\)z - \(\frac{7}{9}\) |