How do you solve #9x - 7 = -7#?

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Answer 1 · 2018-06-22T08:06:15

#x=0#

Add #7# both sides:

#9x-7=-7#

#9x-7+7=-7+7#

#9x=0#

#x=0/9 = 0#

#x=0#

Check the answer:

#9(0) - 7 = 0-7 = -7#-----> Correct!