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Ktoś mi to rozwiarze pls

Ktoś mi to rozwiarze pls-example-1

1 Answer

1 vote

a)


2a+(3a-7)=2a+3a-7=5a-7

b)


(2x-3)+x=2x-3+x=3x-3

c)


7-(5x+4)=7-5x-4=3-5x

d)


3x-(y-2x)=3x-y+2x=5x-y

e)


-(3a+6)-4=-3a-6-4=-3a-10

f)


-(x-2y)-3x=-x+2y-3x=2y-4x

g)


(2p-1)+(3+5p)=2p-1+3+5p=7p+2

h)


(4-2x)-(7x-2)=4-2x-7x+2=6-9x

i)


-(2x-1)+(3x+1)=-2x+1+3x+1=x+2

j)


(2m+4n)+(m-0,5n)=2m+4n+m-0,5n=3m+3,5n

k)


(4a-7b)-(2a+3b)=4a-7b-2a-3b=2a-10b

l)


-(2p-r)-(2r-p)=-2p+r-2r+p=-p-r

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