Toán Lớp 6: A)x +2×5²=6²×3 B)x+4²×3= 3³×5 C)x- 3³×5=8²×2 D)4×5²+x=9²×5 E)5³×3-x=4³×5 F)2.x-4²×5=6²×3 G)3.x +6²×5=9²×6 Tìm x,biết: Giúp tui vớiiiiii

Question

Toán Lớp 6:  A)x +2×5²=6²×3 B)x+4²×3= 3³×5 C)x- 3³×5=8²×2 D)4×5²+x=9²×5 E)5³×3-x=4³×5 F)2.x-4²×5=6²×3 G)3.x +6²×5=9²×6 Tìm x,biết: Giúp tui vớiiiiiiiiiiii

khanhlanchau · Answer

a) x+2.5^2=6^{2}.3   &rArr;x+50=108   &rArr;x=108-50   &rArr;x=58   Vậy x=58   b) x+4^{2}.3=3^{3}.5   &rArr;x+48=135   &rArr;x=135-48   &rArr;x=87   Vậy x=87   c) x-3^{2}.5=8^{2}.2   &rArr;x-45=128   &rArr;x=128+45   &rArr;x=173   Vậy x=173   d) 4.5^2+x=9^{2}.5   &rArr;100+x=405   &rArr;x=405-100   &rArr;x=305   Vậy x=305   e) 5^{3}.3-x=4^{3}.5   &rArr;375-x=320   &rArr;x=375-320   &rArr;x=55   Vậy x=55   f) 2.x-4^{2}.5=6^{2}.3   &rArr;2x-80=108   &rArr;2x=108+80   &rArr;2x=188   &rArr;x=188:2   &rArr;x=94   Vậy x=94   g) 3.x+6^{2}.5=9^{2}.6   &rArr;3x+180=486   &rArr;3x=486-180   &rArr;3x=306   &rArr;x=306:3   &rArr;x=102   Vậy x=102