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 - 5b = 5b - 3z + 7 for b in terms of z.
| -\(\frac{2}{7}\)z - 1 | |
| -\(\frac{6}{7}\)z - \(\frac{6}{7}\) | |
| 10z + 4 | |
| -10z + 4 |