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 -2b + 2b = 7b + 5z - 1 for b in terms of z.
| -\(\frac{2}{3}\)z - 3 | |
| \(\frac{1}{15}\)z - \(\frac{1}{3}\) | |
| z + \(\frac{2}{3}\) | |
| -\(\frac{1}{3}\)z + \(\frac{1}{9}\) |