Question

solve 3x+2y=29 5x- y =18​

Answer 1

Answer:

x=5

y=7

Step-by-step explanation:

3x+2y=29)×5

5x-y=18)×3

15x+10y=145

15x-3y=54

- + -

_______

13y= 91

y= 91/13

y=7

3x+2y=29

3x+2×7=29

3x+14=29

3x=29-14

3x=15

x=15/3

x =5

Answer 2

Step-by-step explanation:

3x+2y=29.....(i)

5x-y=18......(ii)

Lets solve the equation by eliminating 'Y'

Multiply equation (ii) by 2, we get

5x×2 -y×2=18×2

Therefore. 10x-2y=36. ......(iii)

Add equations (I) and(iii)

3x+2y=29

10x-2y=36

—————————————

13x. =65

Therefore 65/13 =5

Substitute x=5 in equation ....(I)

3x+2y=29

Therefore 3×5+2y=29

=>15+2y=29

=>2y=29-15

=>2y=14

=>y=14/2

=>y=7

Therefore (x,y) =(5,7) is the solution..

HOPE THIS ANSWER HELPS YOU....☺