Math, asked by shreyaskhaire59, 6 days ago

49x-57y=172;57x-49y=252

Answers

Answered by smrutimeher773

0

Step-by-step explanation:

49x-57y=172

- 57x-49y=252

----------------------------

-8x-8y = -80

= -8x-8y+80=0

=8(x-y+10)=0

= x+y=10

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