Question

2x+y-35=0,3x+4y-65=0
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Answer 1

Answer:

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Step-by-step explanation:

2x+y=35 ....(1)

3x+4y=65 ....(2)

2×Eqn(2)−3×Eqn(1) we get

6x+8y−6x−3y=130−105

⇒5y=25 or y= 5/25 =5

Substitute y=5 in (1) we get

2x+5=35⇒2x=35−5= 30

or x= 2/30 =15

∴x=15,y=5

Answer 2

Answer:

2x+y=35   ....(1)

3x+4y=65  ....(2)

2×Eqn(2)−3×Eqn(1) we get

6x+8y−6x−3y=130−105

⇒5y=25 or y=525=5

Substitute y=5 in (1) we get

2x+5=35⇒2x=35−5=30

or x=230=15

∴x=15,y=5