Question

3x + 4y = 31 & 5x- 3y = 13​

Answer 1

Answer:

3x+4y=31

5x-3y=13

multiply eq i by 3

so eq will be 9x+12y=93

multiply eq ii by 4

20x-12y=52

by eliminating method

adition

9x+12y=93 eq-----(ii)

20x-12y=52------eq(i)

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29x=145

x=145/29

x=5

put the value of x in eq (i)

3(5)+4y=31

15+4y=31

4y=31-15

4y=16

y=16/4

y=4

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Answer 2

refer the attachment

the value of x is 5

the value of y is 4