Răspuns :
[(a×270÷3)×5+100]÷6000=1
(a×270÷3)×5+100= 6000
(ax270 ÷3)x5 = 6000-100
(ax270 ÷3)x5 = 5900
ax270 ÷3=5900 ÷ 5
ax270 ÷3 = 1180
ax270=1180x3
ax270= 3540
a= 3540 ÷ 270
a= [tex] \frac{118}{9} [/tex] sau a=13,(1)
(a×270÷3)×5+100= 6000
(ax270 ÷3)x5 = 6000-100
(ax270 ÷3)x5 = 5900
ax270 ÷3=5900 ÷ 5
ax270 ÷3 = 1180
ax270=1180x3
ax270= 3540
a= 3540 ÷ 270
a= [tex] \frac{118}{9} [/tex] sau a=13,(1)
[(a×270÷3)×5+100]÷6000=1
(a×90)×5+100= 6000 x1
(ax90)x5 +100= 6000
(ax90)x5 = 6000-100
(ax90)x5=5900
ax90=5900:5
ax90=1180
a=1180:90
a=13,1
(a×90)×5+100= 6000 x1
(ax90)x5 +100= 6000
(ax90)x5 = 6000-100
(ax90)x5=5900
ax90=5900:5
ax90=1180
a=1180:90
a=13,1