Question

3x+10y=40,20x-160y=40 find x&y​

Answer 1

Answer:

x =10, y =1

Step-by-step explanation:

3x+10y =40

20x-160y =40

3x + 10y = 40×20

20y - 160y = 40×3

1. 60x + 200y = 800
2. 60 x - 480y = 120
3. - + -
4. 680y = 680
5. y= 680÷680
6. y=1
7. y valu is equavasi 1 or 2
8. 3x + 10 y = 40
9. 3x +10 (1) = 40
10. 3x +10 =40
11. 3x =40-10
12. 3x =30
13. x =30/3
14. x =10