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 + 3b = 5b + 8z + 7 for b in terms of z.
| -z + 3 | |
| 1\(\frac{1}{10}\)z - \(\frac{7}{10}\) | |
| -\(\frac{5}{7}\)z - 1 | |
| -1\(\frac{3}{7}\)z - 1\(\frac{1}{7}\) |