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Rezolvati ecuatiile: DAUUU COROAAAAANAAAAAAAA!!!!!!!!!!!!!!!!!!!!!!!!!!!! SI 30 PCT
a)16 1/3 - 2x = 5 3/5 (X nu e inmultirea ci litera)
b)3,4x + 1,8x = 43,16
c)5x + 3,7 = 10,5
d)2*(3,4x - 1,2) = 11,2 (* e inmultirea)

Răspuns :

Renatemambouko
a)16 1/3 - 2x = 5 3/5
49/3 - 2x = 28/5
245-30x=84
30x=161
x=161/30=5,3(6)

b)3,4x + 1,8x = 43,16
5,2x=43,16
x=8,3

c)5x + 3,7 = 10,5
5x=6,8
x=1,36

d)2*(3,4x - 1,2) = 11,2
6,8x-2,4=11,2
6,8x=13,6
x=2

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