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23 tháng 2 2017
a x [3+6-1]-1968=3680
a x 8 -1968=3680
ax8=3680+1968
ax8=5648
a=706
TQ
6
20 tháng 2 2017
=\(3a+6a-1a=3680+1968\)
=\(3a+6a+1a=5648\)
\(a\left(3+6+1\right)=5648\)
\(10a=5648\)
\(a=564,8\)
26 tháng 4 2015
a x 3 + a x 6 - a -1968 = 3680
a x ( 3 + 6 ) - a -1968 = 3680
a x 9 - a - 1968 = 3680
a x 8 - 1968 = 3680
a x 8 = 3680 + 1968
a x 8 = 5648
a = 5648 : 8
a = 706
10 tháng 1 2022
a x 3 + a x 6 - a -1968 = 3680
a x ( 3 + 6 ) - a -1968 = 3680
a x 9 - a - 1968 = 3680
a x 8 - 1968 = 3680
a x 8 = 3680 + 1968
a x 8 = 5648
a = 5648 : 8
a = 706
VB
23 tháng 2 2017
ax3+ax6-a-1968=3680
ax3+ax6-ax1-1968=3680
ax(3+6-1)-1968=3680
ax8=3680+1968
ax8=5648
a=5648:8
a=706
10 tháng 1 2022
a x 3 + a x 6 - a -1968 = 3680
a x ( 3 + 6 ) - a -1968 = 3680
a x 9 - a - 1968 = 3680
a x 8 - 1968 = 3680
a x 8 = 3680 + 1968
a x 8 = 5648
a = 5648 : 8
a = 706
10 tháng 1 2022
a x 3 + a x 6 - a -1968 = 3680
a x ( 3 + 6 ) - a -1968 = 3680
a x 9 - a - 1968 = 3680
a x 8 - 1968 = 3680
a x 8 = 3680 + 1968
a x 8 = 5648
a = 5648 : 8
a = 706
TL
2 tháng 3 2017
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PT
2
2 tháng 4 2022
a) x : 6 = 14
x = 14 x 6
x = 84
b) x + 253 = 639
x = 639 - 253
x = 386
c) x - 29 = 56 x 3
x = 56 x 3
x = 168 + 29
x = 197
Ta có:a.3 + a.6-a-1968=3680
=>a.(3+6)-a-1968=3680
=>a.9-a-1968=3680
=>a.9-a=3680+1968
=>a.8=5648
=>a=5648:8
=>a=706