Toán Lớp 6: (5+x)-15=10
-3-x=-2
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Toán Lớp 6: (5+x)-15=10
-3-x=-2
giúp tui nhe
Comments ( 2 )
(5+x)-15=10
(5+x) = 10+15
(5+x) = 25
x = 25-5
x = 20
-3-x=-2
x =-3-(-2)
x =-3+2
x =-1
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