Question

solve the following sets of simultaneous equation 1) x + y = 4 ; 2x – 5y = 1​

Answer 1

Answer:

x= 3 , y = 1

Step-by-step explanation:

x+y= 4 ----------- I

2x- 5y = 1--------- II

Multiply equation I by 5

we get

7x =21

x = 21/7

x= 3

therefore

x+y=4

3+y=4

y=4-3

y= 1

I hope this help you please mark my answer brain list

Answer 2

Answer:

I used Desmos and the point which these lines intersect is at (3,1)

So x must be 3 and y must be 1