Math, asked by rebelwind252, 11 months ago

FIND WEATHER UNIQ SOLUTON
7X-4Y=49 , 5X-6Y=57

Answers

Answered by anu012

1

(7X-4Y=49)×5

(5X-6Y=57)×7

=35X-20Y=245

=35X-42Y=399

=22Y=-154

Y=-7

7X-4Y=49

=7X-4(-7)=49

=7X+28=49

=7X=21

X=3

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