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 + 5z + 9 for b in terms of z.
| -z + 4\(\frac{1}{2}\) | |
| -\(\frac{1}{2}\)z - 4\(\frac{1}{2}\) | |
| -1\(\frac{1}{4}\)z + \(\frac{1}{4}\) | |
| -1\(\frac{3}{11}\)z - \(\frac{7}{11}\) |