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rezolvati in multimea fractiilor zecimale ecuatiile a 3x-12.25+2x+x=x-6.25 b 8x+1.345- 2x=7.395-2x+0.35 14x+12.25-7x=24.01-7x

Răspuns :

Renatemambouko
a) 3x-12,25+2x+x=x-6,25
6x-12,25=x-6,25
5x=-6,25+12,25
5x=6
x=1,2

b) 8x+1,345- 2x=7,395-2x+0,35
8x+1,345=7,745
8x= 7,745-1,345
8x=6,4
x=0,8

c) 14x+12,25-7x=24,01-7x
14x+12,25=24,01
14x=24,01-12,25
14x=11,76
x=0,84

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