a)2x - 5 = -11
\(2x=-11+5\)
\(2x=-6\)
\(x=-3\)
b) 22 -(-x) = 12
\(-x=22-12\)
\(-x=10\)
\(x=-10\)
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Các câu hỏi tương tự
tim so nguyen x bt
25 – 2x = 16 – 3x
d) x – (47 – 22) = 5+ (10 – 4x) ai giup mik vs
tim so nguyen x bt
x – 18 = 22 – 47
b) 4 2 – x = 53 – 60
c) 25 – 2x = 16 – 3x
d) x – (47 – 22) = 5+ (10 – 4x)
tim cac so nguyen x de ( A=x+4/x-2)+(2x+5/x-2) la 1 so nguyen
Tim cac so nguyen x y sao cho (2x+1).(y-1)=12
so cac so nguyen x thoa man 15-|-2x+3|*|5+4x|=19 tim so cac so nguyen x giup minh nhe
!
tim x dua vao quan he uoc boi:tim so tu nhien x sao cho x-1 la uoc cua 12tim so tu nhien x sao cho 2x+1 la uoc cua 28tim so tu nhien x sao cho x+15 la boi cua x+3tim cac so nguyen x,y sao cho (x+1)(y-2)3tim so nguyen x sao cho(x+2).(y-1)2tim so nguyen to x vua la uoc cua 275 vua la uoc cua 180tim so nguyen to x,y biet x+y12 va UCLL (x:y)5tim so tu nhien x,y biet x+y32 va UCLL (x:y)8tim so tu nhien x biet x chia het cho10; xchia het cho12; x chia het cho15 va 100x150tim so x nho nhat khac 0b biet...
Đọc tiếp
tim x dua vao quan he uoc boi:
tim so tu nhien x sao cho x-1 la uoc cua 12
tim so tu nhien x sao cho 2x+1 la uoc cua 28
tim so tu nhien x sao cho x+15 la boi cua x+3
tim cac so nguyen x,y sao cho (x+1)(y-2)=3
tim so nguyen x sao cho(x+2).(y-1)=2
tim so nguyen to x vua la uoc cua 275 vua la uoc cua 180
tim so nguyen to x,y biet x+y=12 va UCLL (x:y)=5
tim so tu nhien x,y biet x+y=32 va UCLL (x:y)=8
tim so tu nhien x biet x chia het cho10; xchia het cho12; x chia het cho15 va 100<x<150
tim so x nho nhat khac 0b biet x chia het cho 24 va 30
40 chia het cho x . 56 chia het cho x va x>6
BAI 1 : TIM TAT CA CAC SO TU NHIEN x , y SAO CHO : ( 2x + 1 ) . ( y - 5 ) = 12
BAI 2: a ) TIM SO NGUYEN x VA y, BIET : xy - x + 2y = 3
b) CO SO TU NHIEN NAO MA CHIA CHO 18 DU 12 , CON CHIA CHO 6 THI DU 2 KHONG ?
cau 1.tim x
a)15-|x-4|=6
b)-30+|25-x|=-1
c)x-(12-25)=-8
d) (x-29)-(17-38)=-9
cau 2.tim so nguyen x
a,22-(-x)=12
b,(x+5)+(x-9)=x+2
c,(27-x)+(15+x)=x-24
a, Tim cac so nguyen duong x,y nho hon 10 sao cho 3x - 4y = -21
b, tim cac so nguen x,y sao cho xy -2x + 5y -12 = 0