The weight of a man is four times the weight of a child.Write an equation in two variables
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let weight of man be=x
and let weight of child be=y
so,
weight of man=4(weight of child)
x=4y
therefore x-4y=0
this is required equation in two variables
and let weight of child be=y
so,
weight of man=4(weight of child)
x=4y
therefore x-4y=0
this is required equation in two variables
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