TÌm x:
134-2.{ 156-6.[54-2.(9+6)] }.x=86
giúp mình 2h nộp rùi,huhu
Tìm x biết 134 - 2 { 156 -6 [ 54 - 2 . ( 9+6 ) } . x =80
134-2{156-6[54-2.(9+6)]}.x=80
=>2.{156-6.[54-2.15]}.x=134-80
=>2.{156-6.[54-30]}.x=54
=>{156-6.24}.x=54:2
=>{156-144}.x=27
=>12.x=27
=>x=27/12
Tìm x, biết:
134 - 2 . {156 - 6[54 - 2(9 + 6)]} . x = 86
134 - 2 . {156 - 6[54 - 2(9 + 6)]} . x = 86
134 - 2 . { 156 - 6 [ 54 - 2 . 15 ) ] } . x = 86
134 - 2 . { 156 - 6 [ 54 - 30 ] } . x = 86
134 - 2 . { 156 - 6 . 24 } . x = 86
134 - 2 . { 156 - 144 } . x = 86
134 - 2 . 21 . x = 86
2 . 21 . x = 134 - 86
2 . 21 . x = 48
21 . x = 48 : 2
21 . x = 24
x = 24 : 21
x = 1
134-2.{156-6.[54-2.(9+6)]}.x=86
134-2.{156-6.[54-2.(9+6)]}.x=86
2.{156-6.[54-2.15]}.x=134-86
2.{156-6.[54-30]}.x=48
2.{[156-6.24]}.x=48
2.{[156-144]}.x=48
2.{12}.x=48
24.x=48
x=48:24
x=2
Vậy x=2
Chúc bn học tốt
134-2×{156-6×[54-2×(9+6)]}×x=86
134-2.{156-6.[54-2.(9+6)]}.x=86
Tìm x , biết :
134 - 2 { 156 - 2 . [ 54 - 2 .(9 + 6 ) ] } . x = 86
134-2.{156-6.[54-2.(9+6)]}.x=86
134-2.{156-6.[54-2.(9+6)]}.x=86
<=>134-2.{156-6.[54-2.15]}.x=86
<=>134-2.{156-6.24}.x=86
<=>134-2.12.x=86
<=>134-24.x=86
<=>24.x=134-86
<=>24.x=48
<=>x=48:24
<=>x=2
Vậy...
k mik nhé
Thanks
42 -(2x +32) +12 :2 =6
134 - 2 . {156 - 6.[54 -2.(9+6) ] } x=86
42 -(2x + 32) + 12 :2 =6
42 - 2x - 32 + 6 = 6
42 - 2x - 32 = 0
42 - 2x = 32
2x = 42 - 32 = 10
x = 5
134 - 2 . {156 - 6.[54 -2.(9+6) ] } x = 86
134 - 2.{ 156 - 6.[54 - 2 . 15 ]} x = 86
134 - 2.{ 156 - 6 . 24} x = 86
134 - 2. 12 .x = 86
134 - 24x = 86
24x = 48
x = 2
\(42-\left(2x+32\right)+12:2=6\)
\(\Rightarrow42-2x-32=0\)
\(\Rightarrow2x=10\)
\(\Rightarrow x=5\)
Tìm x,biết:
a, 315+(125-x)=435
b, 6x-5=613
c, 128-3(x+4)=23
d, [(14x +26).3+55].5=23
e, -x +8=17
f, 134-2{156-6[54-2(9+6)]}.x=86
Bạn nào làm nhanh mình tick nhé.
a, 315+(125-x)=435
<=> 125 - x = 435 - 315
<=> 125 - x = 120
<=> x = 5
b, 6x-5=613
<=> 6x = 613 + 5
<=> 6x = 618
<=> x = 103
c, 128-3(x+4)=23
<=> 3(x +4 ) = 105
<=> x + 4 = 35
<=> x = 31
e, -x +8=17
<=> x = -9
a, 315+(125-x)=435
125-x=435-315=120
x=125-120=5
=>x=5
b,6x-5=613
6x=613+5=618
x=618:6=103
c, 128-3(x+4)=23
3(x+4)=128-23=105
x-4=105:3=35
x=35+4=39
Ý D NHẦM ĐẦU BÀI BẠN ƠI.