` 25 - (30 + x) = x - (27 - 8)`
`<=> 25 -30 -x = x -27+8`
`<=> -5-x = x - 19`
`<=> -x -x = -19 +5`
`<=> -2x = -14`
`=> x = -14/(-2) = 7`
Vậy `x=7`
` 25 - (30 + x) = x - (27 - 8)`
`<=> 25 -30 -x = x -27+8`
`<=> -5-x = x - 19`
`<=> -x -x = -19 +5`
`<=> -2x = -14`
`=> x = -14/(-2) = 7`
Vậy `x=7`
Tìm x biết 25-(30+x)=x-(27-8)
tìm x
25-(30+x)=x-(27-8)
Tìm x:
a) x - (17 - 8) = 5 + (10 - 3x)
b) 25 - (30 +x) = x - (27 - 8)
c) (x-12) - 15 = (20 - 7) - (18 + x)
d) 9 - 25 = (7 - x) - (25 + 7)
Tìm x biết:a) 29-x/21 + 27-x/23 + 25-x/25 + 23-x/27 + 21-x/29
b)x-10/30 + x-14/43 + x-5/95 + x-148/8 = 0
tìm x
a ) 25 - ( 30 + x ) = x - ( 27 - 8 )
b ) ( x -12 ) -15 = ( 20 - 7 ) - ( 18 + x )
tìm x
x-(17-8)=5+(10-3.x)
25-(30+x)=x-(27-8)
cho 3.x là 3 nhân x nha cá bạn
Tìm x biết:
a. x-(17-8)=5+(10-3x)
b. 25-(30+x)=x-(27-8)
c. (x-12)-15=(20-7)-(18+x)
tìm x biết,
a)x-13=-5+8
b)|x-2|=|-5|
c)25-(30+x)=x-(27-8)
d)(x-12)-15=(20-7)-(18+x)
25-( 30+ x)= x-( 27-8)
-25 + (30-x )-x =-(27+8)