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5(2x+3)-2(3x-2)=7x-12​

Răspuns :

10x+15-6x+4=7x-12
4x+19= 7x-12
4x-7x=-12-19
-3x= - 31
X=31/3

Răspuns:

10x+15 -6x-4=7x-12

16x+19=7x-12

16x-7x=-12-19

9x=-31

x= -31/9