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 4b - 4b = 6b - z - 7 for b in terms of z.
| -1\(\frac{1}{2}\)z + 3\(\frac{1}{2}\) | |
| z + 1 | |
| -\(\frac{3}{16}\)z - \(\frac{3}{8}\) | |
| \(\frac{1}{2}\)z + 1\(\frac{1}{8}\) |