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OpenStudy (anonymous):
the sum of a number and twice that number equals 45 what's the equation?
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OpenStudy (anonymous):
3x=45 ==>x=15
OpenStudy (anonymous):
thanks you :) !
OpenStudy (anonymous):
eqn is actually x+2x = 45 ... then u get x=15
OpenStudy (anonymous):
thank you!
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