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varadnet2006:
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let the cost of one pencil be Rs x
let the cost of one pen. ople Rs y
therefore, cost of 5 pencils will be 5x
""""""""""""""""""""""""7 pens will be 7 y
atq, 5x+7y=50 ------>(1)
similarly, 7x+5y=46--->(2)
multiply 1 eq by 7 and 2 eq by 5
35x+49y=350
35x+25y=230
(-) (-). (-)
24y=120
y=5
put y=5 in (1)
5x+7(5)=50
5x=50-35
5x=15
x=3
I hope you understand it ☺️☺️.
Mark me as brainlist ☺️☺️.
let the cost of one pen. ople Rs y
therefore, cost of 5 pencils will be 5x
""""""""""""""""""""""""7 pens will be 7 y
atq, 5x+7y=50 ------>(1)
similarly, 7x+5y=46--->(2)
multiply 1 eq by 7 and 2 eq by 5
35x+49y=350
35x+25y=230
(-) (-). (-)
24y=120
y=5
put y=5 in (1)
5x+7(5)=50
5x=50-35
5x=15
x=3
I hope you understand it ☺️☺️.
Mark me as brainlist ☺️☺️.
mark me as brainlist ☺️☺️
plz
i have done hard work for uh ☺️☺️☺️ in typing
oh Thank you so much...^_^
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