Toán Lớp 6: tìm x biết
a.(-5)+x=7
b.(-14)-x+(-15)=-10
c.12+x+(-5)=-18
d.x-(-19)-(-11)=0
giúp mik mik vote 5 sao ạ
em cảm ơn!
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Toán Lớp 6: tìm x biết
a.(-5)+x=7
b.(-14)-x+(-15)=-10
c.12+x+(-5)=-18
d.x-(-19)-(-11)=0
giúp mik mik vote 5 sao ạ
em cảm ơn!
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