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cum calculam 4•(3x/5-1/8)=1intreg si 3/5
Va rog.....!!


Răspuns :

4 × (3x/5 - 1/8) = 1 3/5

4 × (3x/5 - 1/8) = 8/5 |×5

20 × ( 3x/5 - 1/8) = 8

3x/5 - 1/8 = 8/20

3x/5 - 1/8 = 2/5 |×40

24x - 5 = 16

24x = 16 + 5

24x = 21

x = 21/24

x = 7/8
4(3x/5-1/8)=(5×1+3)/5
12x/5-4/8=8/5
12x/5-1/2=8/5
aducand la același numitor 10
24x-5=16
24x=21
x=21/24
simplificând prin 3
x=7/8