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OanaMaria2401
a fost răspuns

Efectuati:
a)0,5x+0,7x-0,6x+3,5x-1,8x=
b)2,25a-1,65a+(3a-a)-(a-0,7a)=
c)3,9y+(2,55y+3,45y)+0,1y=
d)0,3b-(1,5b-0,7b+0,2b)+2b=

Răspuns :

Damnit
a) 1,2x-0,6x+3,5x-1,8x=4,7x-2,4x=2,3x
b) 0,6a+2a-0,3a=2,6a-0,3a=2,3a
c)3,9y+6y+0,1y=4y+6y=10y
d) 0,3b-1b+2b=2,3b-1b=1,3b

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