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It is urgent to solve problems with equations in junior high school mathematics. 30 points!
1. solution: let the length of the original rectangle be a and the width be b.

Then the equations can be obtained according to the meaning of the question: A-2=B+2.

2AB = (A-2)(B+2)

Solution: A=2* radical number 2+2, B=2* radical number 2-2 (positive value)

After testing, A B is the solution of the original equation (the equation should be tested, otherwise the teacher will deduct points! )

The price of a ticket is X yuan.

According to the meaning of the question: X+( 1/2)X*5-60%*6X=24.

Solution: X=240

So the price of a ticket is 240 yuan.

(1) Let's meet for the first time in x seconds.

Then 5.5X+4.5X=400.

The solution is X=40.

A: It takes 40 seconds to meet for the first time.

(2) It takes x seconds to catch up.

Then 4.5x+10 = 5.5x.

The solution is X= 10.

A: It takes 10 seconds to catch up.

(3) Set the first meeting of two people after x seconds.

Because a is faster than B.

So when they first met, A was almost in Otsuichi's circle!

Then 5.5x-400 = 4.5x.

X=400 seconds.

Hoo ~ ~ ~ It's finally over!

Give it to me ~