X + 50 = 100 - 20
50 + 50 + 50 x 100 -20 =?
50+50+50x100-20
=50x3x100-20
=150x100-20
=15000-20
=14980
50 + 50 + 50 x 100 - 20 = 50 x 100 + 50 + 50 - 20 = 5000 + 50 + 50 - 20 =5100 - 20 = 5080
hoặc là 50 + 50 + 50 x 100 - 20 = 50 x 2 + 50 x 100 - 20 = 5100 - 20 = 5080
100 : 20 =?
20 x 50 =?
100 : 20 = 5
20 x 50 = 1000
k mik nha , mik k lại !!!!!!!!!!!!!!!!!!!!!!!!!!
X x 20 x 50 = 100
x . 20 . 50 = 100
x . 100 = 100
x = 100 : 100
x = 1
X x 20 x 50 = 100
X x 100 = 100
x = 100 : 100
x = 1
\(x\times20\times50=100\)
\(\Leftrightarrow x\times100=100\)
\(\Leftrightarrow x=100\div100\)
\(\Leftrightarrow x=1\)
Chúc bạn học tốt
X : 50/100 + X : 0,125 + X : 20% = 106,5
x : 1/2 + x : 1/8 + x : 1/5 = 106.5
x * 2 + x * 8 + x * 5 = 106.5
15x = 106.5
x = 7.1
X : 50/100 + X : 0,125 + X : 20% = 106,5
X x 100/50 + X x 1000/125 + X x 100/20 = 106,5
X x (2 + 8 + 5) = 106,5
X = 106,5 : 15
X = 7,1
=X : 1/2 + X :1/8 + X : 1/5=106,5
=X: (1/2+1/8+1/5)=106,5
=X:33/40=106,5
X=106,5 x 33/40
X=7029/8000
X + 50 = 100 - 20
X + 50 = 100 - 20
<=>x+50=80
=>x=80-50
=>x=30
X + 50 = 100 - 20
X + 50 = 80
X = 80 - 50
X = 30
X + 50 = 100 - 20
X + 50 = 80
X = 80 - 50
X = 30
x + 20 + 50 = 100
x + 20 + 50 = 100
x + 70 = 100
x = 100 - 70
x = 30
vậy x = 30
mk k bn rồi đó bn k mk lại đi
x + 20 + 50 = 100
x=100-50-20
x=100-70
x=30
k mình nha
x là 30 nha bn
k mk mk sẽ k laj
thanks các bn nhju
x+50 = 100 :20
x + 50 = 100 :20
x + 50 = 5
x = 5 - 50
x = - 45
X + 50 = 100 - 20
X + 50 = 100 - 20
X + 50 = 80
X = 80 - 50
X = 30
X + 50 = 100 - 20
X + 50 = 80
X = 80 - 50
X = 30
100 x 50 x 20 = ?
100 x 50 x 20 = 5000 x 20
= 100000
100 x 50 x 20 = 100 000
k mk nha ^_^