Toán Lớp 3: a) 3x-20=1
b) 12:x=4
tìm x giúp mình nha
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Toán Lớp 3: a) 3x-20=1
b) 12:x=4
tìm x giúp mình nha
Comments ( 2 )
=>3xx x=1+20
=>3xx x=21
=>x=21:3
=>x=7
Vậy x=7
b) 12:x=4
=>x=12:4
=>x=3
Vậy x=3