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calculati:
5(8x+3)-(x+7)=2(19x+5)-9


Răspuns :

5(8x+3)-(x+7)=2(19x+5)-9
40x+15-x-7=38x+10-9
40x-38x-x=10-9-15+7
x= -7
40x+15-x-7=38x+10-9
40x-38x-x=10-9-15+7
x=-7
sper ca te-am ajutat