Math, asked by TotalGaming940, 1 month ago

find the value of x+y if 12x+13y=29 ; 13x+12y=21

Answers

Answered by golerutwik4

3

Step-by-step explanation:

12X+13=29-13X+12y=21

-1x+1=8

-1x=8-1

-1x=7

-x=7+1

-x=6

X=-6

Answered by kanchanbutola271

4

Step-by-step explanation:

(12x+13y=29) ×13

(13x+12y=21 )×12

=169y-144y=377-252

25y=125

y=5

12x+13(5)=29

12x=29-65

12x=-36

x=-3

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