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calculati va rog.....​

Calculati Va Rog class=

Răspuns :

Răspuns:

2 - 7x/4 = 5x/4 - 1/2

8 - 7x = 5x - 2

10 = 12x

x=10/12

x=5/6

1/2*(4- 3 1/2x) = 1 1/4x-1/2
4- 3 1/2 *x=2* 1 1/4*x-1
4-7/2x=5/2x-1
8-7x=5x-2
-7x-5x=-2-8
-12x=-10
x=5/6