( 14 - x : 6) x 7 = 84
TÌM X, (14 - x : 6) x 7 = 84
( 14 - x : 6 ) x 7 = 84
14 - x : 6 = 84 : 7
14 - x : 6 = 12
x : 6 = 14 - 12
x : 6 = 2
x = 2 x 6
x = 12
a) 14 x 6 30 x 7 84 : 4 66 : 3
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TÌM x biết (14 - x : 6 ) x 7 = 84
( 14 - x : 6 ) x 7 = 84
14 - x : 6 = 84 : 7
14 - x : 6 = 12
x : 6 = 14 - 12
x : 6 = 2
x = 2 x 6
x = 12
( 14 - x : 6 ) x 7 = 84
14 - x : 6 = 84 : 7
14 - x : 6 = 12
x : 6 = 14 - 12
x : 6 = 2
x = 2 x 6
x = 12
a, 3/4x X : 1/2 = 4/5
b,( 14-X: 6) x 7= 84
c,Xx 1,5 : 2,4 = 0,3
d,( 2 + 4/3 ) x 7/4 = 5-7/6
a) \(\dfrac{3}{4}\times x:\dfrac{1}{2}=\dfrac{4}{5}\)
\(\dfrac{3}{4}\times x=\dfrac{4}{5}\times\dfrac{1}{2}\)
\(\dfrac{3}{4}\times x=\dfrac{2}{5}\)
\(x=\dfrac{2}{5}:\dfrac{3}{4}\)
\(x=\dfrac{8}{15}\)
b) \(\left(14-x:6\right)\times7=84\)
\(14-x:6=84:7\)
\(14-x:6=12\)
\(x:6=14-12\)
\(x:6=2\)
\(x=6\times2=12\)
c) \(x\times1,5:2,4=0,3\)
\(x\times1,5=0,3\times2,4\)
\(x\times1,5=0,72\)
\(x=0,72:1,5\)
\(x=0,48\)
d) Thiếu x
Tìm x
( 14 - x : 6 ) :7 = 84
( 14 - x : 6 ) : 7 = 84
( 14 - x : 6 ) = 84 x 7 =588
x : 6 = 14 - 588 = -574
x = - 574 x 6
x = - 3444
14 - x :6 = 84 nhân 7
14 - x : 6 = 588
x : 6 mà bằng 588 suy ra x phải lớn hơn 588 6 lần, suy ra x cũng lớn hơn 14
Vậy đề cho 14-x suy ra x ko có kết quả thỏa mãn đề bài
(14-x:6):7=84
14-x:6=84x7
14-x:6=588
14-x=588x6
14-x=3528
x=14-3528
x=-3514
Vậy x=-3514
( 14 - x : 6 ) * 7 = 84
( 14 - x : 6 ) * 7 = 84
( 14 - x : 6 ) = 84 : 7
( 14 - x : 6 ) = 12
14 - x : 6 = 12
14 - x = 12 : 6
14 - x = 2
x =14 - 2
x = 12
Nhớ k cho mk nha !!!!!!!!!!!
( 14 - x : 6 ) x 7 = 84
( 14 - x : 6 ) = 84 : 7
( 14 - x : 6 ) = 12
14 - x : 6 = 12
14 - x = 12 : 6
14 - x = 2
x = 14 - 2
x = 12
Vậy x = 12
( 14 - x : 6 ) x 7 = 84
( 14 - x : 6 ) = 84 : 7
( 14 - x : 6 ) = 12
14 - x : 6 = 12
14 - x = 12 : 6
14 - x = 2
x = 14 - 2
x = 12
( 14 - x : 6 ) x 7 = 84
ai làm nhanh thì mình tích cho
(14-x:6)=84:7+=12
x:6=14-12=2
x=2*6=12
(14-x:6)x7 = 84
=> 14-x:6 = 12
=> x:6 = 14-12 = 2
=> x = 2 x 6
=> x = 12
Tìm số nguyên x biết :
a,-14 - 7+x= - 12 b,x+(-15)-(-6)=11
c,x-[18+(-7)]=15 d,-84+(-18-6)=x+(-20)
Tìm X
a) 0,12 x X - 2 = 4
b) 231 - ( X - 6 ) = 1339 : 13
c) 7,99 x X + X x 2 + X : 100 = 7,9
d) ( 14 - X : 6 ) x 7 = 84
a)0,12.X-2=4
=>0,12.X=4+2
=>0,12.X=6
=>X=6:0,12
=>X=50
b)231-(X-6)=1339:13
=>231-(X-6)=103
=>X-6=231-103
=>X-6=128
=>X=128+6
=>X=134
c)7,99.X+X.2+X:100=7,9
=>X.(7,99+2+1/100)=7,9
=>X.10=7,9
=>X=7,9:10
=>X=0,79
d)(14-X:6).7=84
=>14-X:6=84:7
=>14-X:6=12
=>X:6=14-12
=>X:6=2
=>X=2.6
=>X=12