4x ;17=0 7x- 8=713 8[x-3]=0

Question

4x ;17=0           7x- 8=713     8[x-3]=0

hongocha · Answer

a,4x :17=0   4x =0.17   4x =0    x=0   b,7x-8=713   7x =713+8   7x=721    x =103   c,8.(x-3)=0       x-3=8.0      x-3=0      x  =0+3      x  =3

maingoc · Answer

4x-17=0   ->4x=17   ->x=17/4   Vậy x=17/4      7x-8=713   ->7x=721   ->x=103   Vậy x=103      8(x-3)=0   ->x-3=0   ->x=3   Vậy x=3

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