What is a collision within the 3 point line in basketball? What is a block?

If x three-pointers are thrown, 9-x two-pointers are thrown, 2*(9-x)+3*x=21, x=3, and Zhang Peng throws three three-pointers.

If these 21 points are all earned by 3 points, there is no penalty or anything. That's to make seven three-pointers.

3 threes, 6 twos.

Set x three-pointers.

2（9-x）+3x=21

If the solution is x=3, if it is a primary school math problem, this is correct, but if it is a practical situation, it is also necessary to consider that the free throw is 1 ball and 1 point.

Shoot 3 3-pointers and shoot 6 2-pointers because 3*3+2*6=9+12=21

If you don't make free throws, you can make up to seven 3-pointers, maybe 5 3s and 1.

7 threes 0 twos.

5 threes and 3 twos.

3 threes, 6 twos.

1 three-pointer 9 two-pointer.

There are a lot of possibilities for this, do you mean all 3 points or what?

This is a mathematical calculation problem, 3x+2y=21 (x, y represent natural numbers) and you will understand.

Let's say x number of three-pointers are shot.

3*7=27 points.

27-21 = 6 points.

3-2=1 pcs.

6 1=6 .Two-point shot.

9-6 = 3. Pointers.

The number of three-pointers must be odd.

If the whole cloth casts 2 points, 2 10 = 20

So he made at least one 3-pointer.

10 times, in addition to 3 points, the maximum is 2 points, 2x10 = 20 points, that is, if there are no 3 points, the maximum is 20 points He scored 21 points, so at least once he gets 3 points 2x10 = 20 points 21-20 = 1 point 2 + 1 = 3 points 3 3 = 1 time.

If it's all two points, then it's a total of 20 points, not enough 21If there are 10 two-point shots and free throws, let's do a simple unary equation: Suppose x two-point shots are made, then the equation is 2x+(10-x)=21

There is no need to go into details).

This is not a violation (not a foul), and the kick-off ball is directly into the line or within the three-point line, and the receiver of the team can attack directly. If the ball is broken, the opponent must go beyond the three-point line. Just look at the rules of 3v3 basketball to get it clear.

Attached: The rules of the three-on-three basketball game promulgated by the Chinese Basketball Association.

Article 5. 5-1 Offensive and Defensive Conversion:

5-1-1 After each shot, the opponent serves.

5-1-2 All exchange of service (e.g. infractions, throw-ins and after a shot is made) is a dead ball, and the throw-in is taken in the teeing area to continue play.

In all cases where service is not exchanged (e.g., a foul that does not take a free throw), the ball is served outside the nearest three-point line. In this case, the referee must hand over the ball before serving.

5-1-3 After the defender breaks the ball or grabs the rebound, he must dribble (pass) the ball out of the three-point line (the player with the ball must have both feet outside the three-point line) to organize the offense, otherwise the offense will be violated.

In the 5-1-4 scrum, jumping the ball in the free throw circle, either side must dribble (pass) the ball out of the three-point line (the ball carrier must have both feet outside the three-point line) before the offense can be organized, otherwise the offense will be violated. If you accidentally hit the jump ball, the jump ball will be invalid, and the jump ball will be re-missed.

3 three-object disturbance points, 6 two-point points.

Set x three-pointers.

2（9-x）+3x=21

Solve x=3 This is correct if it is a math problem in elementary school, but if it is a real situation.

Also consider that the free throw is 1 point for the team.

This is the same type as the chicken and rabbit in the same cage, assuming that all the 3-point shots made by the hungry sedan should be 3x9 = 27 points, 27-21 = 6, 6 (2-1) = 6 that is, 6 2-point shots.

It can also be assumed that all 2-pointers are leftovers, 9x2=18,,21-18=3,3 (2-1)=3, i.e. 3 3-pointers.

The answer is the same, 3 for 3-pointers and 6 for 2-pointers.

Set to put in x pcs.

Pointers. then shoot 9-x two-point shots, 2*(9-x)+3*x=21, x=3, Zhang Peng.

The pitcher was defeated by three three-pointers.