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 + 3b = -8b + 2z + 4 for b in terms of z.
| z + 1 | |
| z - \(\frac{1}{3}\) | |
| -\(\frac{1}{3}\)z - \(\frac{1}{2}\) | |
| -\(\frac{1}{15}\)z + \(\frac{4}{15}\) |