2. Three more than seven times a number is nine more than five times the number.
\( \qquad \)
3. Twice a number less eight is equal to one more than three times the number.
\( \qquad \)
4. A number divided by three, minus the same number mulfiplied by siox, is one more than the number.
\( \qquad \)
5. A number divided by eight, plus seven, is fifty.
\( \qquad \)