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a fost răspuns

Rezolvării ecuațiile a) 5/17x=9/34 ; b)4/9x-3/2=1/6

Răspuns :

a)5/17x=9/34
17x×9=5×34
153x=170
x=170/153
b)4/9x-3/2=1/6
4/9x=1/6+3/2
4/9x=1/6+9/6
4/9x=10/6
4/9x=5/3
5×9x=3×4
45x=12
x=12/45
x=4/15

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