8+-1= 7 x=-1
20
no x would be 0.5 because two times 0.5 is 1 ( 2x ) and then add 7 equals 8 ( plus seven equals 8 )
42
89
7-1=6
8+-1= 7 x=-1
20
20
The numbers are: 1 and -8
no x would be 0.5 because two times 0.5 is 1 ( 2x ) and then add 7 equals 8 ( plus seven equals 8 )
42
8 - 1 = 7
89
x=1
-1
8+y = 7+5y y-5y = 7-8 -4y = -1 y = 1/4