Question

$x + y = 5 \\ 2x + 3y = 4$
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Answer 1

Answer:

x+y=5..........eq 1

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

multiplying eq 1 with 2

so we get,

2x+2y=10

2x+3y=4

- - -

___________

-y=6

y=-6

Putting value of y in Eq 1

x+y=5

x+(-6)=5

x-6=5

x=5+6

x=11

Answer 2

Answer:

multiplying 2 with first equation

2x + 2y = 10

solve the equation

2x + 2y = 10

2x + 3y = 4

-

-------------------

-y = 6

y = -6

putting value of y in equation

x + y = 5

x - 6 = 5

x = 5 + 6

x = 11

so x = 11

and y = -6

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