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Cornealarisa18
a fost răspuns

1,4x + 4=3,4x+5 supra8

Răspuns :

Spidie
1,4x + 4=3,4x+5/8

14x/10 + 4=34x/10+5/8
20x/10= 4 - 5/8
2x=  27 /5
5*2x=27
x= 27/10
x=2,7
Claudiaborjoi12
1,4*x+4=3,4*x+5 supra 8 Amplificam cu 8 si in partea stanga =>11,2*8x+32=3,4*x+5.. 11,2-3,4+8x-x=32-5.... 7,8+7x=27... 7x=27-7,8... 7x=19,2....x=19,2supra 7 =2,7

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