Question

solve the following equation by addition method 12x+13y=51,13x+12y=49​

Answer 1

Answer:

x = 1

y = 3

hope it help you

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Answer 2

Answer:

12x + 13y = 51

13x + 12y = 49

___________

taking lcm

156x + 169y = 663

156x + 144y = 588

______________

-            25y = 75

                 y = 75/25

                 y = 3

substituting y = 3 in any one of equation:

12x + 39 = 51

12x = 51 - 39

12x = 12

x = 12/12

                 x=1

hope it helped, peace!

(p.s. it isn't addition method, its called elimination method)