PLSSS HELP IF YOU TURLY KNOW THISS

1 Subtract

12

12 from both sides.

x

2

=

84

−

12

2

x

​

=84−12

2 Simplify

84

−

12

84−12 to

72

72.

x

2

=

72

2

x

​

=72

3 Multiply both sides by

2

2.

x

=

72

×

2

x=72×2

4 Simplify

72

×

2

72×2 to

144

144.

x

=

144

x=144

144

Step-by-step explanation:

Subtract 12 in both sides:

x/2 = 72

Multiply both sides by 2:

x = 144

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:

it is x=-4

step-by-step explanation: