# Simple equations

Solve system of equations:

5x+3y=5
5x+7y=25

Result

x =  -2
y =  5

#### Solution:

5x+3y=5
5x+7y=25

5x+3y = 5
5x+7y = 25

x = -2
y = 5

Calculated by our linear equations calculator.

Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):

Showing 0 comments: Be the first to comment! #### To solve this example are needed these knowledge from mathematics:

Do you have a system of equations and looking for calculator system of linear equations?

## Next similar examples:

1. Linear system Solve this linear system (two linear equations with two unknowns): x+y =36 19x+22y=720
2. Two trains There were 159 freight wagons on the railway station creating 2 trains. One had 15 more wagons than the other. How many wagons did each train have?
3. Hostel Students are accommodated in 22 rooms. Rooms were 4 and 6 bed. How many rooms in which type occupied 106 children there?
4. Weights Marry and John together weighing 49 kg. Their weights are in ratio 1:6. Determine their weights.
5. Spain vs USA Spain lost to the US by 4 goals. In the match total fell 10 goals. How many goals gave the Spain and how the United States?
6. Waiting room In the waiting room are people and flies. Together they have 15 heads and 50 legs (fly has 6 legs). How many people and flies are in the waiting room?
7. Boys and girls There are 48 children in the sports club, boys are 10 more than girls. How many girls go to the club?
8. Grandfather and grandmother The old mother is 5 years younger than the old father. Together they are 153 years old. How many years has each of them?
9. Two numbers Find two numbers whose difference and ratio is 2.
10. Two numbers We have two numbers. Their sum is 140. One-fifth of the first number is equal to half the second number. Determine those unknown numbers.
11. Simplify 2 Simplify expression: 5ab-7+3ba-9
12. Greg and Bill Greg is 18 years old. He is 6 less than 4 times Bill's age. How old is Bill?
13. Alley Alley measured a meters. At the beginning and end are planted poplar. How many we must plant poplars to get the distance between the poplars 15 meters?
14. The percentages in practice If every tenth apple on the tree is rotten it can be expressed by percentages: 10% of the apples on the tree is rotten. Tell percent using the following information: a. in June rained 6 days b, increase worker pay 500 euros to 50 euros c, grabbed 21 fro
15. Class In a class are 32 pupils. Of these are 8 boys. What percentage of girls are in the class?
16. Percents - easy How many percent is 432 out of 434?
17. TVs Production of television sets increased from 3,500 units to 4,200 units. Calculate the percentage of production increase.