привести подобные слагаемые
1)-2у+3k+y-2k+y
2)-2(3-y)+3(y-2)
3) -3(2y+5e)+(3e-2y)
4)2x+(4-(3x+5))-1
1)-2у+3k+y-2k+y
2)-2(3-y)+3(y-2)
3) -3(2y+5e)+(3e-2y)
4)2x+(4-(3x+5))-1
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Answers & Comments
2)-2(3-y)+3(y-2)=-6+2y+3y-6=-5y-12
3)-3(2y+5e)+(3e-2y)=-6y-15e+3e-2y=-8y-12x
4)2x+(4-(3x+5))-1=2x+(4-3x-5)-1=2x+4-3x-5-1=-x-2