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Cum se fac ecuatiile: 1,25-1,2x=4,5x-2,1-1,15


Răspuns :

1.25+2.1+1.15=4.5x+1.2x
4.5=5.7x, x=5.7/4.5=1.2(6)
-1,2x-4,5x=-1,25-2,1-1,15
-5,7x=3,50
X=5,7+3,5
X=9,2