Enter the value x that makes the equation 7x-4+8x-3=-67
x=

7x-4+8x-3x=-67

Combine the x’s

12x-4=-67

Bring the -4 under the -67 and make it positive

Add the 4 and -67

12x=-63

Put division signs under bothering numbers and divide by 12. The 12x/12 would cancel out to be x.

Divide -67/12

X=-5.25

x = -4

Explanation:

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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