Tìm x: 435 : x + 125 : x - 60 : x = 5
Tìm x : 435 : x + 125 : x - 60 : x = 5
435 : x + 125 : x - 60 : x = 5
(435+125-60) : x = 5
500 : x = 5
x = 500 : 5
x = 100
435 : x + 125 : x - 60 : x = 5
( 435 + 125 - 60 ) : x = 5
500 : x = 5
x = 500 : 5
x = 100
tìm x biết :
315+[125-x]=435
xin mn giúp t đang gấp
315+[125-x]=435
125-x=435-315
125-x=120
x=125-120
x=5
\(315+\left(125-x\right)=435\)
\(125-x=435-315\)
\(125-x=120\)
\(x=125-120\)
\(x=5\)
315 + [ 125-x ] = 435
125-x = 435 - 315
125-x = 120
x = 125-120
x = 5
Tim x biet :x-1/7+x-1/9+x-1/11+x-1/13=0
b) 315+(125-x) : 5=435 c) 315+(125-x)=435
Trả lời giúp mình gấp nhé
tìm x biết
a,(x-25)-130=150 c,435+5.x=135
b,125+(145-x)=175
a) (x - 25) - 130 = 150
=> x - 25 = 150 + 130
=> x - 25 = 280
=> x = 280 + 25
=> x = 305
c) 435 + 5.x = 135
=> 5.x = 135 - 435
=> 5.x = - 300
=> x = -300 : 5
=> x = - 60
\(\left(x-25\right)-130=150\)
\(\left(x-25\right)=150+130\)
\(\left(x-25\right)=280\)
\(x=280+25\)
\(x=305\)
a. (x - 25) - 130 = 150
x - 25 = 280
x = 305
b. 125 + (145 - x) = 175
145 - x = 50
x = 95
c. 435 + 5x = 135
5x = -300
x = -60
Tìm x
a,575 - (6x +70 ) = 447
b,315 + (125-x ) =435
b)315+(125-x)=435
125-x=435-315
125-x=120
x=125-120
x=5
a) 575 - ( 6x + 70 ) = 447
( 6x + 70 ) = 575 - 447
( 6x - 70 ) = 128
6x = 128 + 70
6x = 198
x = 198 : 6
x = 33
b) 315 + ( 125 - x ) = 435
( 125 - x ) = 435 - 315
125 - x = 120
x = 125 - 120
x = 5
tìm x thuộc N, biết :
a) x - 105 : 21 = 15
b) ( x - 105 ) : 21 = 15
c) 315 + ( 125 - x ) = 435
a) x - 105 : 21 = 15
x - 5 = 15
=> x = 20
b) ( x - 105 ) : 21 = 15
x - 105 = 315
=> x = 420
c) 315 + ( 125 - x ) = 435
125 - x = 120
=> x = 5
a)x - 105 : 21 = 15
x - 5 =15
x =20
b) (x - 105) :21=15
x -105 =315
x =420
c) 315+ (125 - x ) =435
125 - x =-120
x =5
Giải giúp nhé! aii nhanh mk tick
Tìm X
315 = ( 125 - x) = 435
Đầu bài phải là :315+(125-x)=435
kết quả là x=5
k cho mk nha
a, 315+(125-x)=435
b,5×(x-12)=120
c,(3x-7):2=28
a, 315+(125-x)=435
125-x=435-315
125-x=120
x=125-120=5
b, 5(x-12)=120
x-12=120:5
x-12=24
x=24+12=36
c, (3x-7):2=28
3x-7=28.2
3x-7=56
3x=56+7
3x=63
x=63:3=21
a, 215+(125-x)=435
=>125-x=435-315
=>125-x=120
=>x=125-120
=>x=5
b,5x(x-12)=120
=>x-12=120:5
=>x-12=24
=>x=24+12
=>x=36
c,(3x-7):2=28
=>3x-7=28x2
=>3x-7=56
=>3x=56+7
=>3x=63
=>x=63:3
=>x=21
a, 125-x =435-315=120
x=125-120=5
b, x-12=120:5=24
x=24+12=36
c, 3x-7=28x2=56
3x=56+7=63
x=63:3=21
tìm x biết:
a,315+(125-x)=435
b,x:41=32
c,(x-105):21=15
d,x-105:21=15
,
a) \(315+\left(125-x\right)=435\)
\(\Leftrightarrow125-x=435-315\)
\(\Leftrightarrow125-x=120\)
\(\Leftrightarrow x=125-120\)
\(\Leftrightarrow x=5\)
b) \(x:41=32\)
\(\Leftrightarrow x=32\cdot41\)
\(\Leftrightarrow x=1312\)
c) \(\left(x-105\right):21=15\)
\(\Leftrightarrow x-105=15\cdot21\)
\(\Leftrightarrow x-105=315\)
\(\Leftrightarrow x=315+105\)
\(\Leftrightarrow x=420\)
d) \(x-105:21=15\)
\(\Leftrightarrow x-5=15\)
\(\Leftrightarrow x=15+5\)
\(\Leftrightarrow x=20\)
a, 315 + ( 125 - x ) = 435
( 125 - x) = 435 - 315
( 125 - x ) = 320
x = 320 - 125
x = 195
bạn văn quang long tính sai rồi 435-315=120 chứ