In order to solve for the variable in the equation 1-(x+2)+2x=5(2x-5)-x, mikel first applies the distributive property. which equation is a result of this step? a)1-x+2+2x=10x-5-x b)1-x-2+2x=10x-25-x c)1-x-1+2x=10x-25-x d)1-x-1+2x=10x-5-x

distributive property is a(b+c)=ab+ac

so

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

5(2x-5)=5(2x)+5(-5)=10x-25

you get

1-x-2+2x=10x-25-x

answer is B

given that triangle abc is transformed two times to get triangle

a"b"c"

first abc is transformed in to a'b'c' as follows:

the coordinates of a are (1,-1) and transformed into a'(-1,1)

similarly b (4,-2) became b'(-4,2) and

c(7,-2) became c'(-7,2)

i.e. (x,y) becomes (-x,-y)

this is nothing but reflection about a point here origin.

thus first transformation is reflection on the origin.

next is exactly shifting 3 units down

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