1, which belongs to the linear equation in the following categories is ().

A. 1/2X- 1 = 4/5-y b .-5-3 =-8

C.X+3 D. X+4-3X/465=X+ 1

2, the solution of the equation is ()

A.B. 1/3 C. 1 D. - 1

3. If the solution of the equation about satisfies the equation, the value of is ().

A. 10

4, according to the following equation property is correct ()

A.from - 1/3X=2/3y，X=2y B. from 3X-2=2X+2，X=4。

C from 2X-3=3X, X = 3d；; From 3X-5, 3X=7-5.

5. When solving equation 2x+1/3-10x+1/6 =1,the correct result is ().

A.4X+ 1- 10X+ 1 = 1 b . 4X+2- 10X- 1 = 1

C.4X+2- 10X- 1 = 6 c . 4X+2- 10X+ 1 = 6

6. The price of TV sets has been reduced twice in a row 10%. After the price reduction, the price of each TV set is one yuan, so the original price of TV set is ().

A.0.8 1a Yuan B. 1.2 1a Yuan C.A./1.21Yuan D.A./0.81Yuan.

2. Fill in the blanks:

1l2Xl=4 and x is _ _ _ _ _.

2. If the square of lX-y+4l+(y-3) is known to be 0, then 2x+y = _ _ _ _ _ _ _ _

3. If the solution of Equation 2(X- 1)-a=0 of X is 3, then the value of A is _ _ _ _ _ _ _ _ _.

4. If there is a three-digit number, the single digit is A, the tenth digit is B and the hundredth digit is C, then this three-digit number is expressed as _ _ _ _ _ _ _ _.

5. There are 96 people in Class A and Class B, and Class A has 2 more people than Class B, so Class B has _ _ _ _ _ _ _.

6. Three times a number is twice as big as half of it. If a number is y, the equation is _ _ _ _.

7. When _ _ _, the values of the algebraic expressions 4X+2 and 3X-9 are opposite to each other.

Third, solve the equation:

1、2(X- 1)=4 2、 1/2( 1/2X- 1)- 1 = 1

3、 1-3(8-X)=-2( 15-2X)4、X+ 1/2+X-4/3=2

Four, column equation to solve application problems:

1. The enemy escaped at the station 8 kilometers away from our army. The time is 4 am. Our army set off at 5 o'clock and pursued at the speed of 10 km per hour. And I caught up at 7: 00. What is the speed at which the enemy fled?

In the mid-term exam, the information technology teacher asked every seventh-grade student to write an article within 40 minutes. As we all know, it takes Bao Xiao 50 minutes to finish an article of the same size independently, while Beckham only needs 30 minutes. In order to complete the task, Bao Xiao asked Beckham for help and cooperation after playing for 30 minutes. Can he finish it in the required time?

3. Mother Black Bear wanted to test the effect of Little Bear's learning "solving application problems with equations", and gave him 19 apples to divide him into four piles. After dividing, if the first pile is doubled, the second pile is increased by one, the third pile is reduced by two and the fourth pile is doubled, the number of apples in these four piles will be the same. How does the bear divide these 65400 apples?

The school is going to spend 2000 yuan to buy prizes for 22 students who won the Hope Cup competition. The first prize was awarded to 200 yuan, and the second prize was awarded to 50 yuan. How many students will win the first prize and the second prize respectively?