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c)1/2✖️(4-3 1/2x)=1,1/4x-1/2 d)4✖️(3-2x)+24=2✖️(3+2x)

Răspuns :

Răspuns:

2 - 7x/4 = 11x/40 - 1/2

80 - 70x = 11x - 40

-59x = -120

x = 120/59 = 2 intregi 2/59

12 - 8x + 24 = 6 + 4x

-12x = -30

x = 30/12 = 5/2 = 2 întregi 1/2