Question

2) 7x+3y=15;12y-5x=39​

Answer 1

Answer:

7x+3y=15

7x=15-3y

x=(15-3y)/7

Answer 2

Step-by-step explanation:

5 (7x+3y)=15*5

7(-5x+12y)=39*5

35x+15y=75

-35x+84y=195

adding both

99y= 270

y=30/11

putting y in 1

7x+90/11=15

7x= 15-90/11

7x=(165-90)/11

x= 75/77

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