Toán Lớp 7: x-2/9 = 3-x/7
nhanh gọn lẹ giúp >:v
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Toán Lớp 7: x-2/9 = 3-x/7
nhanh gọn lẹ giúp >:v
Comments ( 2 )
(x-2)/9 =(3-x)/63
<=>(7(x-2))/63 =(9(3-x))/63
<=>7(x-2)=9(3-x)
<=>7x-14=27-9x
<=>16x = 41
<=>x=41/16
Vậy x=41/16