720 : (X x 2+ X x 3) = 2 x3
720 :( a x 2 +a x3) = 2 x3
720 : ( a x 2 + a x 3 ) = 6
a x 2 + a x 3 = 720 : 6 = 120
a x 5 = 120
a = 120 : 5 = 24
720 :( a x 2 +a x3) = 2 x3
=> 720 : ( a x 5 ) = 6
=> ax5 = 720 :6
=> a x 5 = 120
=> a = 120 :5
=> a = 24
≧◉◡◉≦
720 :( a x 2 +a x3) = 2 x3
720:( a x 2 + a x 3)=6
720:( a x 5 ) =6
a x 5 = 720:6
a x 5 = 120
a = 120:5
a = 24
tìm x
2448:[199-(x-6)]=24
(6x-39:7x4=12
720:[41-(2x-5)]=8,5
1+2+3+4+.............+(x-1)+x=78
(x+1)x3+2x=53
5x(4x+2)+3x=240
31x57x x-57x14x x= 85,57
(x+1)+(x+2)+(x+3).........+(x+100) 5750
(8x+x+63):11=9
các bạn giải nhanh giúp mình nhé
Tìm x, biết:
a) 2-x = 2 ( x - 2 ) 3 ; b) 8 x 3 - 72x = 0;
c) ( x - 1 , 5 ) 6 + 2 ( 1 , 5 - x ) 2 = 0; d) 2 x 3 +3 x 2 +3 + 2x = 0;
e) x 3 - 4x- 14x(x - 2) = 0; g) x 2 (x + 1)- x(x + 1) + x(x - 1) = 0.
Tìm x:
720 : (X x 2 + X x 3) = 2 x 3
\(x\cdot2+x\cdot3=720:6\)
\(x\cdot\left(2+3\right)=120\)
\(x=120:5\)
\(x=24\)
Dấu " . " là dấu nhân
Học tốt nhé :)
720:(Xx2+Xx3)=6
Xx2+Xx3=720:6
Xx2+Xx3=120
Xx(2+3) =120
Xx5 =120
X =120:5
X =24
Tìm x :
720 : ( x × 2 + x × 3 ) = 2 × 3
720 : [ x × ( 2 + 3 ) ] = 6
720 : ( x × 5 ) = 6
x × 5 = 720 : 6
x × 5 = 120
x = 120 : 5
x = 24
Vậy x =24
x+x*1/3/2/9+x+2/7=720
giải các phương trình sau:
a)(√x+1+1)3+2√x−1=2−x(x+1+1)3+2x−1=2−x
b)x3=x4+x3+x2+x+2x3=x4+x3+x2+x+2
c)2(x2+x+1)2−7(x−1)2=13(x3−1)2(x2+x+1)2−7(x−1)2=13(x3−1)
d)8x2+√1x=52
720 :[X +2 x X +3] =2x3
720 :[x +2 . x +3] =2.3
720:(x+2.x+3)=6
x+2.x+3=120
x.(2+3)=120
x.5=120
x=24
\(720:\left[X+2xX+3\right]=2x3\)
\(720:\left[x+\left(2+3\right)\right]=6\)
\(x+5=720:6\)
\(x+5=120\)
\(x=120-5\)
\(x=115\)
\(720\div\left(x\times5\right)=6\)
\(x\times5=720\div6\)
\(x\times5=120\)
\(x=120\div5\)
\(x=24\)
#TThuHuongg
Tìm X biết 720:(X x 2 + X x 3) = 2x3
\(720:\left(x\times2+x\times3\right)=2\times3\)
\(720:\left(x\times5\right)=6\)
\(x\times5=720:6\)
\(x\times5=120\)
\(x=120:5\)
\(x=24\)
tìm X :
720 : ( X x 2+ X x 3)= 2x3
720 : ( X x5 )= 6
X x 5 = 720 : 6
X x 5 =120
X = 120 : 5
X = 24
chúc bạn học tốt
720:(x.2+x.3)=2.3
=> 720:[x.(2+3)]=6
=> x.5 =720:6
=> x.5 =120
=> x =120:5
=> x =24
Vậy x=24
720 : ( X x 2+ X x 3)= 2x3
720 : ( X x 2+ X x 3)= 6
720 : [X x (2+3)] = 6
720 : (X x 5) = 6
720 : 5 x X = 6
X = 720 : 5 : 6
X = 24