Oblicz liczby pod literą x
a) 20*x=4 2/5
b)3 3/4*x=4 1/2
c)x*2 3/7= 34
d) x :1 2/5=5/7
e) x : 1 1/2=21/25
f) 4 2/3 : x= 6 1/9
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a) 20*x=4 2/5
20x=22/5 /:20
x=22/100
x=11/50
b)3 3/4*x=4 1/2
15/4x=9/2 /*4/15
x=6/5
x=1 1/5
c)x*2 3/7= 34
17/7x=34 /*7/17
x=14
d) x :1 2/5=5/7
x*5/7=5/7 /*7/5
x=1
e) x : 1 1/2=21/25
x*2/3=21/25 /*3/2
x=63/75
f) 4 2/3 : x= 6 1/9 /*x
14/3=55/9x /*9/55
x= 42/55
20X=4,4 /20
x=0,22
3,75x=4,5/3,75
x=0,83
2 3/7x =34 /2 3/7
x=14