Solve the system for x and y. -8x-y= -43
8x-5y= -71

A. ( 4,11)
B. (3,19)
C. (-2,11)
D. ( 2,27)

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the cost of the pair of pants is $31.95

x=-2

step-by-step explanation:

i began by flipping the problem to give me x= on the left (keeps it clearer for me).   so my problem simply became 10x-3=4x-6.  

1)   subtract 4x from the right side, which equals 0.   you do the same to the left of the equal as the right; therefore, subtract 4x from 10x, leaving 6x on the left.

              10x-3=4x-6   :   4x-4x on the right leaves only the -6        

2)             6x-3= 0-6 :    

                6x+3=   -6

3) divide