2+?=-1 I don’t know what this is

x=-3

Step-by-step explanation:

lets make the "?" to a "x"

2+x=-1

do the math and its x=-3

so that means 2+-3=-1

? = -3

2 + -3 = -1

Step-by-step explanation:

You're adding negative 3 to positive 2 (2 + -3 = -1), which is the same thing as subtracting positive 3 minus positive 2 (2 - 3 = -1).

Hope this helps :)

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

source:

h/o/e/s mad

step-by-step explanation:

si si si