[ 2. ( 70 - x ) + 72 ]: 2 =46
[ ( 2.x + 54 ) - 32 ] . 2 = 244
( ( 2. x + 54 ) -32 ) .2 =244
( 2 . ( 70 - x )+72 ) : 2 =46
xin lỗi mk đánh máy tính nen ko án đc ngoặc vuông thông cảm nhé giúp mk với
a, ((2.x+54)-32).2=244
((2.x+54)-32)=244:2
((2.x+54)-32)=122
(2.x+54)=122+32
(2.x+54)=154
x+54=154:2
x+54=77
x=77-54
x=23
{(2x+54)-32}.2=244
(2x+54)-32=244:2122
2x+54=154
2x=100
x=50
{2.(70-x)+72}:2=46
2.(70-x)+72=92
2(70-x)=20
70-x=10
x=60
Tìm số tự nhiên x, biêys
A). 2.x-138=80-2 mũ 3 . 3 mũ 2
10+2.x=4 mũ 5 : 4 mũ 3
720:[41-(2.x-5)]=2 mũ 3.5
[2.(70-x)+72]:2=46
[(2.x+54)-32].2=244
(3.x-1) mũ 3=125
Ai giúp mình lẹ lên
[ ( x^2+54)-32]*2=244
tìm x [ ( x2+54)-32]*2=244
[(x^2+54)-32]*2=244
(x^2+54)-32=244/2
(x^2+54)-32=122
x^2+54=122+32
x^2+54=154
x^2=154-54
x^2=100
=> x=10 hoặc x=-10
[(x2+54)-32]*2=244
(x2+54)-32=244/2
(x2+54)-32=122
x2+54=122+32
x2+54=154
x2=154-54
x2=100=102
=>x=10
[ ( x + 54 ) - 32 ] x 2 = 244
[ ( x + 54 ) - 32 ] x 2 = 244
( x + 54 ) - 32 = 244 : 2 =122
x + 54 = 122 + 32 =154
x = 154 - 54 =100
=> (x+54)-32=244:2
=> (x+54)-32=122
=> x+54=122+32
=>x+54=154
=> x=154-54=100
t i c k cho mình nha cãm ơn
[ ( x + 54 ) - 32 ] x 2 = 244
( x + 54 ) - 32 = 244 : 2 =122
x + 54 = 122 + 32 =154
x = 154 - 54
x =100
[ (x2 + 54) - 32]. 2= 244
tìm x
tìm x:
a,[ ( x+32)-17]*2=42
b,[ 61+(53-x)]*17=1785
c,[ ( x^2+54)-32 ] * 2=244
a) => (x+32) - 17 = 42:2 = 21
=> x+32 = 21+17 = 38
=> x=38-32=6
b) => 61+(53-x) = 1785:17=105
=> 53-x = 105-61=44
=> x = 53-44 =9
c) => x^2 +54 -32 = 244:2 = 122
=> x^2 +22 = 122
=> x^2 = 122-2=100
=> x= 10 hoặc -10
giải oy pn **** giùm mk nka
[2.(70 - x) + 72] : 2 = 46
Lời giải:
$[2(70-x)+72]:2=46$
$(140-2x+72):2=46$
$212-2x=46.2=92$
$2x=212-92=120$
$x=120:2=60$
[(x2+54)-32 đóng ngoặc vuông .2 bằng 244
\(\left[\left(x^2+54\right)-32\right].2=244\)
\(\Rightarrow\left(x^2+54\right)-32=122\)
\(\Rightarrow x^2+54=154\)
\(\Rightarrow x^2=100\)
\(\Rightarrow x=\pm10\)
Vậy \(x=\pm10\)