=> [x*(100-2):2+1]+[(100+2)x50:2]=2700
=> x*50+ 2550=2700
=> x*50=2700-2550
=> x*50=150
=> x=150:50
=> x=3
(x+2)+(x+4)+(x+6)+...........+(x+100)=2700
x50+(2+4+6+.....+100) =2700
x50+2550 =2700
x50 =2700-2550
x50 =150
x =150:50
x =3
=> [x*(100-2):2+1]+[(100+2)x50:2]=2700
=> x*50+ 2550=2700
=> x*50=2700-2550
=> x*50=150
=> x=150:50
=> x=3
(x+2)+(x+4)+(x+6)+...........+(x+100)=2700
x50+(2+4+6+.....+100) =2700
x50+2550 =2700
x50 =2700-2550
x50 =150
x =150:50
x =3
(x +2) +(x + 4)+(x+6)+...+((x+100)=2700
( x + 2 ) + ( x + 4 ) + ( x + 6 ) + ... + ( x + 100 ) = 2700
(x+2) + (x+4)+(x+6)+...+(x+100)=2700
(x+2)+(x+4)+(x+6)+...+(x+100)=2700
{ x + 2 } + { x + 4 } + { x + 6 } + . . . . + { x + 100 } = 2700 . Tìm x
Tìm X biết: (x+2)+(x+4)+(x+6)+.....+(x+100)=2700
Tìm x :
( x+2)+(x+4)+(X+6)+............+(x+100)=2700
Tìm x biết (x +2) + (x + 4) + ( x + 6) + ... + ( x+ 100) = 2700
Tìm x biết (x +2) + (x + 4) + ( x + 6) + ... + ( x+ 100) = 2700