dnance
how do you cross multiply when theres a letter involved??



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WLB250219
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what is the problem you are working on?

dnance
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3/4=21/2+d

jiteshmeghwal9
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3(2+D)=4(21)

best.shakir
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dw:1344010514907:dw

jiteshmeghwal9
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dw:1344010644530:dw

best.shakir
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so therefore 6+3d=84
3d=846=78
d=78/3=

best.shakir
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ans is 24

best.shakir
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sorry 26

jiteshmeghwal9
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now take variable at one side & constants @ one side to solve it
d=846
d=78/3=26

jiteshmeghwal9
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dw:1344010744884:dw