Help read a few words, thank you, thank you

1.Everything was covered in snow.

everythings are cover with big snow.

2.We overcame the difficulties and the city was revitalized.

we are overcome the difficult,again,the city are back to normal.

3.Due to the snowstorm, many people were stranded on their way home.

since the snow are big, many people are besieged while they're going home.

Assuming a ballpoint pen **x and a notebook **y, you can list the following equation 4x+7y=

3x+8y=

Solving this equation will give you the answer.

You can multiply the second equation by four-thirds, subtract it from the first equation to calculate the value of y, and then substitute it for any equation to calculate the value of x.

It can be solved by a system of binary linear equations.

Solution: Set a ballpoint pen x yuan and an exercise book y yuan.

The system of equations can be listed by the title 4x+7y=

3x+8y=

4-3 gets 11y=

So y=substituting y= into 4x+

So x = A: A ballpoint pen.

Set: 1 ballpoint pen = x yuan; 1 exercise book = Y yuan.

4x+7y=

3x+8y=

x=yuany=yuan.

1 ballpoint pen element.

Raven has always loved us? Take Meng as the horse wind and rain in the same text? Think for yourself.

1.There happened to be one defective product.

c(7,2)c(3,1)/c(10,3)

21x3/120

2.All of them are**.

c(7,3)/c(10,3)

3.At least one of them was defective.

1-c(7,3)/c(10,3)

There is no solution to this question. Specific analysis:

The sum of two even numbers equals 8.

The sum of one even number and one odd number equals 13, and the addition of another even number and an even number equals 8.

Such an even number and an odd number are added together, and the sum is an odd number, so it is impossible to find 6.

So there is no solution to this problem.

5x9 = 45 (square centimeters), 2x3 = 6 (square centimeters), 45-6 = 39 (square centimeters).

Subtract the area of the small rectangle (filled in the upper right corner) from the area of the large rectangle.

**I don't know.

Question 6 |m|=1 and m-1 is not 0, so m=1 or -1, and m is not 1, we get m=-1.

Question 7(1) is not clear.

2）2*(1-2x)/2=2*1

1-2=0-(-2x)

1=2xx=-1/2

Check: [1-2*(-1 2)] 2=[1-(-1)] 2=2 2=1 is correct.