Math, asked by Vignan7371, 8 months ago

Slove 7x-4y=49 and 5x-6y=57

Answers

Answered by rajeshnehra1983

1

Answer:

y=-7

Step-by-step explanation:

5(7x-4y=49)

7(5x-6y=57)

35x-20y=245

35x-42y=399

- + -

____________

22y=-154

_____________

22y=-154

y=-154/22

y=-77/11

y=-7

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