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 6b - 8b = -4b - 4z - 7 for b in terms of z.
| -1\(\frac{6}{7}\)z + \(\frac{2}{7}\) | |
| -5z - 3 | |
| \(\frac{7}{10}\)z + \(\frac{9}{10}\) | |
| \(\frac{2}{5}\)z - \(\frac{7}{10}\) |