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Mathematics 19 Online
OpenStudy (anonymous):

Question Check The Question Was 25h + 40 = -15h - 8 25h + 15h = 40 +-80 40h = 120 h = 3 ?

OpenStudy (saifoo.khan):

question check or answer chk?

OpenStudy (saifoo.khan):

sorry, that's wrong! :/

OpenStudy (saifoo.khan):

you messed up with 8 & 80

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