Grade 6 Equation Solving Problem Super Rush Karma !!!!!! ）

It's about the same as adding points, but for the sake of our fate, I'll give you a few of them.

-1.The difference between a blouse and a pair of pants is 60 yuan, and the ** of pants is 70% of the top. How much is the ** format of tops and pants?

Answer: x-70 x=60

x=200200 70%=140 (yuan).

2.Guangming Primary School had 200 graduates last year, an increase of 15% this year over last year, how many graduates are there this year?

A: 200 (1+15%)=230 people.

6.(1+40%)x=7

Set the length to x, 3*(x-20)=(x-4) x is equal to 28, I hope it can help you.

Analysis: Because the first bundle of ribbons is cut 20 meters and the second bundle is cut 4 meters, then the length of the second bundle is exactly 3 times that of the first bundle. If we take the length of the original ribbon to x, then there is:

x-4=3*（x-20)

x-4=3x-60

2x=56x=28

Solution: Let the length of the two bundles of ribbons be x meters.

Column equation 3 (x-20) = x-4

Solution x=28 Answer:

There is a difference in the question, how can you ask how many of each length are the same length?

Solution: 2 5x+6=5+5 6x

4/5x=1

x=5 4/5 x plus 6 = 5 plus 5/6 x 4/5 x = 1

x = five out of four.

Simplifying the equation yields 3x+6+332=5x, and shifting the term yields 2x=338 and x=169

Let A and B travel as X

x-36)/(10-8)=(36+36)/(12-10)x=108

A: AB The two places are 108 kilometers apart.

Set the purchase price to a and discount B**.

a×(1+40%)×b-a=12%×a

b= 20% off**.

A can be about to make an appointment).

Column principle: selling price - purchase price = profit.

The cost price (purchase price) is regarded as the unit "1", and its purchase price is increased by 40% as the list price, that is, the list price is the cost price: 1+40%.

If you want to get 12% profit in the ** activity, then the sales price must be 1+12% of the cost price.

To get a few discounts**, that is, to ask for the sales price is a few percent of the list price.

A: 20% off**.