Math, asked by aftabkhan04694, 3 months ago

7x+5y=12 and 4x+3y=9 elimination method

Answers

Answered by anurag2147

3

7x+5y=12 ...........¹

4x+3y=9.........2

multiply eq1×3 and eq2 ×5

21x + 15y =36 ........3

20x + 15y = 45 .........4

sub eq3 and eq4

20x-21x = -9

-x = -9

x= 9

put x in eq

4×9+3y=9

36 +3y =9

3y = 27

y= 9

Answered by ravibharathi22

4

Answer:

x = - 9 ; y = 15.

Step-by-step explanation:

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