Question 256277
What am I doing wrong on this equation: 9x-7=-7
I then add 7 to both sides resulting in 9x=-7+7 but that results in 9x=0???then what do I do?
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Divide both sides by 9
x = 0 is the answer.
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to check:
9*0 - 7 = -7
-7 = -7, so it's correct