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 + b = 6b + 9z - 3 for b in terms of z.
| z + \(\frac{1}{4}\) | |
| 1\(\frac{1}{2}\)z + 4 | |
| 8z - 3 | |
| \(\frac{9}{10}\)z - \(\frac{2}{5}\) |