Question

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+o,2b)+2b

Answer 1

a) 1,2x-0,6x+1,7x= 0,6x+1,7x= 2,3x
b)1,60a+2a-0,3a=3,60a-0,30a= 3,90a
c) 3,9y+6,0y+0,1y= 9,9y+ 0,1y = 10y
d) 0,3b-1b+2b= 0,3b+1b= 1,3b
Sper ca te-am ajutat!