Proszę pomóżcie!!!!!!!!!!!
Zapisz w jak najprostszej postaci
a) 11x+2(4-7x)
-12-3(6x-2)
b) -5(3x-1/5)+7x
(-6+8x)(-1/2)-17,5
c) 2y-14:2-4(1+1/2y)
2(y-7)-6y-3:3
d)-4(7-y)-3(2y+1)
10(4,8x-2y)-1,5(y-2x)
Proszę o pomoc jak najszybciej z góry dziękuję !!!!!!!!!!!!!!!!!!!!!!!!
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a)
11x+2(4-7x)=11x+8-14x= 8-3x
-12-3(6x-2)=-12-18x+6= -6-18x = -6(1+3x)
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b)
-5(3x-1/5)+7x=-15x+1+7x= 1-8x
(-6+8x)(-1/2)-17,5= 3-4x-17,5= -14,5-4x
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c)
2y-14:2-4(1+1/2y)=2y-7-4-2y= -11
2(y-7)-6y-3:3=2y-14-6y-1= -4y-15
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d)
-4(7-y)-3(2y+1)=-14+4y-6y-3=-2y-17
10(4,8x-2y)-1,5(y-2x)=48x-20y-1,5y+3x= 51x-21,5y