Question

hi friends give me answer of this question
x+y=20,2x-y=1​

Answer 1

Answer:

x= 7 y= 13

Step-by-step explanation:

Multiply 1st equation by 2 and subtract with 2nd equation

2x +2y = 40

2x - y = 1

(-). (+)

___________

3y = 39

y = 13

x= 7