Question

solve
simuetaneous eq
x+ y = 4;
2x-5y=1​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

x+y=4 ___(1), 2x−5y=1__(2)

multiply eq. (1) by 2.

and then subtract eq. (2)

2x+2y=8

2x−5y=1

- + -

____________

7y=7

y=1

x+y=4

x+1=4

x=3