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 -3b + 7b = -7b + z + 7 for b in terms of z.
| -1\(\frac{1}{2}\)z + 1\(\frac{3}{4}\) | |
| -3\(\frac{1}{3}\)z - 1 | |
| -\(\frac{5}{6}\)z - \(\frac{1}{12}\) | |
| -2z + 5 |