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5x+19-2ori(x+7)=5(2x+5)+22

Răspuns :

5x+19-2(x+7)=5(2x+5)+22
5x+19-2x+14=10x+25+22
19+14-25-22=10x-5x+2x
33-25-22=5x+2x
8-22=7x
14=7x
7x=14
x=14:7
x=2