Tính giá trị biểu thức: (8-9/4+2/7)-(-6-3/7+5/4)-(3+2/4-9/7)
Giải thích
8−94+27−−6−37+54−3+24−97
= 8−94+27+6+37−54−3−24+97
= 8−94+27+6+37−54−3−24+97
= (8 + 6 – 3) + −94−54−24+27+37+97
= 11+ −164+147
= 11+(-4)+2 = 9
8−94+27−−6−37+54−3+24−97
= 8−94+27+6+37−54−3−24+97
= 8−94+27+6+37−54−3−24+97
= (8 + 6 – 3) + −94−54−24+27+37+97
= 11+ −164+147
= 11+(-4)+2 = 9