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OpenStudy (anonymous):
how many solutions does this eqn have? |3x+7|=0 please explain.
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OpenStudy (anonymous):
only way for the absolute value of something to be zero is if the expression inside is 0 how many solutions are there to \(3x+7=0\) ?
OpenStudy (anonymous):
sorry i wrote the problem wrong. hold on
OpenStudy (anonymous):
|3x+7|+2=0
hero (hero):
Solve it and see
hero (hero):
If you subtract 2 from both sides you get |3x + 7| = -2 Absolute value means distance and you can have positive distance or no distance, but what you can't have is negative distance.
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