3x+10y = 300 ; 2x+3y = 145 find value of x and y.
plzzzzz write full answer
Answers
Answered by
4
Answer:
x =50 and y= 15
Step-by-step explanation:
3x + 10y = 300
2x + 3y = 145
By elimination method
2 (3x + 10y) = 2*300
3 (2x + 3y) = 3*145
= 6x + 20y = 600
6x + 9y = 435
By subtracting we get
6x + 20y = 600
- 6x + 9y = 145
= 11y = 165
= y = 165/11
= y= 15
By putting the value of y in 2nd equation we get
2x + 3*15 = 145
2x + 45 =145
2x = 145-45
2x = 100
x = 50
Hope it's correct.
Similar questions