Answer: x=-10 and x=9
i think sorry if i get it wron
Answer:
x = -10 and x = 9
Explanation:
-x = 10 <- divide -1 on both sides: -1x / -1 and 10 / -1.. you get -10 = x
repeat with -x = -9 <- divide -1 on both sides: -1x / -1 and -9 / -1.. you get 9 = x
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