Equations, inequalities and simultaneous models.

Answer: −6

1. Subtract 3 and divide by 4:x<4−21​.
2. The greatest integer below that bound is−6.

Answer: 6

1. Subtract 7
2. divide by−3, reversing the inequality: x≥6.
3. The smallest permitted integer is 6.

Answer: 12

1. Subtract 4 and divide by 6:x<677​.
2. The greatest integer below that bound is 12.