Question

Slove the pair of simultaneous equations 2x+3y=5 -x+2y=8

Answer 1

Answer:

2x+3y=5. eguation 1

x+ 2y = 8. equation. 2

Substitute x=8+2y in equation. 2

2(x+2y) + 3y = 5

2x + 4y + 3y = 5

4y+3y = 7y

2x+5 = 7

7y = 7

y = 7 upon 7. ,

y = 7/7

y = 1

Substituting 1 in equation 1

= 2x+3y=5. equation 1

= 2x+3(1) = 5

= 5x = 5

= x = 5 upon 5. , 5/5

x = 5/5 ( Division )

x = 1

Answer = x = 1 , y = 1 , are solution of the given equation