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(2-x) . 50 = x.150
100-50x = 150x
100= 150x + 50x
100 = 200x
x = 100/200
x= 1/2
jadi,biar setimbang kalo x2 nya 1,x1 nya harus 1/2
kalo x2 nya 2 maka x1 nya harus 1
kalo x2 nya 4 maka x1 nya 2
nah,itu satuan jaraknya m apa cm?