X-270:45=120
(x – 2) x 3 – 270 : 45 = 120
\(\left(x-2\right)\times3-270:45=120\)
\(\Rightarrow3x-6-6=120\)
\(\Rightarrow3x=120+6+6\)
\(\Rightarrow3x=132\)
\(\Rightarrow x=44\)
(x−2)×3−270:45=120(x−2)×3−270:45=120
⇒3x−6−6=120⇒3x−6−6=120
⇒3x=120+6+6⇒3x=120+6+6
⇒3x=132⇒3x=132
⇒x=44
(x-2)×3-270÷45=120
\(\left(x-2\right)\cdot3-270:45=120\)
\(\left(x-2\right)\cdot3-6=120\)
\(\left(x-2\right)\cdot3=120+6\)
\(\left(x-2\right)\cdot3=126\)
\(x-2=126:3\)
\(x-2=42\)
\(x=42+2\)
\(x=44\)
( X - 2 ) x 3 - 270 : 45 = 120
tìm X
( x - 2 ) . 3 - 270 : 45 = 120
( x - 2 ) . 3 - 6 = 120
( x - 2 ) . 3 = 120 + 6
( x - 2 ) . 3 = 126
x - 2 = 126 :3
x - 2 = 42
x = 42 + 2
x = 44
tìm X. (X-2) x 3- 270 : 45 = 120
\(\left(x-2\right)\times3-270:45=120\)
\(\Rightarrow\left(x-2\right)\times3-6=120\)
\(\Rightarrow\left(x-2\right)\times3=120+6\)
\(\Rightarrow\left(x-2\right)\times3=126\)
\(\Rightarrow x-2=126:3\)
\(\Rightarrow x-2=42\)
\(\Rightarrow x=42+2\)
\(\Rightarrow x=44\)
Vậy x = 44
_Chúc bạn học tốt_
\(\left(x-2\right)\cdot3-270:45=120\)
\(\left(x-2\right)\cdot3-6=120\)
\(\left(x-2\right)\cdot3=120+6\)
\(\left(x-2\right)\cdot3=126\)
\(x-2=42\)
\(x=44\)
tìm X. (X-2) x 3- 270 : 45 = 120
\(\left(x-2\right).3-6=120\Leftrightarrow\left(x-2\right).3=126\Leftrightarrow x-2=42\Leftrightarrow x=44\)
Trả lời:
(x - 2) x 3 - 270 : 45 = 120
=> (x - 2) x 3 - 6 = 120
=> (x - 2) x 3 = 120 + 6
=> (x - 2) x 3 = 126
=> x - 2 = 126 : 3
=> x - 2 = 42
=> x = 42 + 2
=> x = 44
Tìm x:
a) (2009 - x) : 29 + 32 = 100.
b) (x - 2) x 3 - 270 : 45 = 120.
\(\left(2009-x\right):29+32=100\\ =>\left(2009-x\right):29=100-32=68\\ =>2009-x=68.29=1972\\ =>x=2009-1972=37\)
-
\(\left(x-2\right).3-270:45=120\\ =>3\left(x-2\right)-6=120\\ =>3\left(x-2\right)=120+6=126\\ =>x-2=126:3=42\\ =>x=42+2=44\)
Bài 1 . Tìm X
a) 7/15 < X/40 < 8/15 ( phân số )
b) X - 140 : 35 = 270
c) 180 - ( X - 45 ) : 2 = 120
d) ( X - 2 ) x 3 - 270 : 45 = 120
e) 3,8 : ( X - 1,05 ) = 19/9 : 1/3 ( phân số )
f) 2 - ( 43/8 + X - 168/24 ) : 38/3 = 0
Tìm x
71+65*4 bằng (x+140):x+260
180-(x-45):2 bằng 120
(2009-x) : 29+32 bằng 100
(x-2) *3 -270:45 bằng 120
(x +0,2 ) + (x+0,7) + (x+1,2) +.....+ (x+4,2) + (x+4,7) bằng 65,5
các anh chị giải giúp em nha
\(180-\left(x-45\right)\div2=120\)
\(\left(x-45\right)\div2=180-120\)
\(\left(x-45\right)\div2=60\)
\(x-45=60\times2\)
\(x-45=120\)
\(x=120+45\)
\(x=165\)
\(\left(2009-x\right)\div29+32=100\)
\(\left(2009-x\right)\div29=100-32\)
\(\left(2009-x\right)\div29=68\)
\(2009-x=68\times29\)
\(2009-x=1972\)
\(x=2009-1972\)
\(x=37\)
\(\left(x-2\right)\times3-270\div45=120\)
\(\left(x-2\right)\times3-6=120\)
\(\left(x-2\right)\times3=120+6\)
\(\left(x-2\right)\times3 =126\)
\(x-2=126\div3\)
\(x-2=42\)
\(x=42+2\)
\(x=44\)
\(\left(x+0,2\right)+\left(x+0,7\right)+\left(x+1,2\right)+...+\left(x+4,2\right)+\left(x+4,7\right)=65,5\)
\(\left(x+x+x+..+x+x\right)+\left(0,2+0,7+1,2+...+4,2+4,7\right)=65,5\)
\(10x+\frac{\left(0,2+4,7\right)\times10}{2}=65,5\)
\(10x+24,5=65,5\)
\(10x=65,5-24,5\)
\(10x=41\)
\(\Rightarrow x=4,1\)
x-270:45=120 3x X :2=2/1/7
GIÚP MK NHÉ MK CẦN GẤP
\(x-\left(270:45\right)=120\)
=> \(x-6=120\)
=> \(x=126\)
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#Hoctot
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x-270:45=120
=>x-6=120
=>x=120+6
=>x=126
Vậy x=126
Trả lời:
x - 270 : 45 = 120
x - 270 = 120 . 45
x - 270 = 5400
x = 5400 + 270
x = 5670