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OpenStudy (anonymous):
when seven times a certain number is subtracted from 15, result is -4. Find the number.
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OpenStudy (anonymous):
make this into an equation, do you know how?
OpenStudy (anonymous):
7 x N -15 = -4
OpenStudy (anonymous):
yes! now solve the equation
OpenStudy (anonymous):
x = 11/7
OpenStudy (anonymous):
but for some reason my book says the answer is 19/7
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OpenStudy (anonymous):
oh! well it could be a typo because i got x=11/7 too
OpenStudy (anonymous):
okay nevermind i see what went wrong!
OpenStudy (anonymous):
it says when 7 times a number is subtracted from 15 meaning you're doing 15-7n=-4
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