Math, asked by sujatakumaridolly, 1 year ago

Please slove question number 5 and 6 this with explanation....

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Answers

Answered by bangarambindu
1

Step-by-step explanation:

(5)

2x+3y=92-----------(1)

4x-7y=2--------------(2)

multiple equation (1) with 2

4x+6y=184

4x-7y,=2

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

13y=182 ,y=14

substitute y value in equation 1

2x+3×14=92

2x=92-52

2x=40,x=20

x=20,y=14

(6). 3x+y=142---------(1)

4x-y=138.----------(2)

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

7x=280,x=40

substitute x value in equation 1

3×40+y,=142

y=142-120

y=22

x=40,y=22

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