Toán Lớp 6: [3$^{4}$-(8$^{2}$+14):13]x=5$^{3}$+10$^{2}$
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Toán Lớp 6: [3$^{4}$-(8$^{2}$+14):13]x=5$^{3}$+10$^{2}$
Comments ( 2 )
=>[81-(64+14):13].x=125+100
=>[81-78:13].x=225
=>[81-6].x=225
=>75.x=225
=>x=225:75
=>x=3
Vậy x=3