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Mathematics 20 Online
OpenStudy (anonymous):

help >.<

OpenStudy (anonymous):

OpenStudy (anonymous):

can you help me with this one ? @Euler271

OpenStudy (nikato):

b is definition of vertical angles

OpenStudy (nikato):

c is definion of supplementary

OpenStudy (nikato):

d should have two parts, substitution and subtracting

OpenStudy (anonymous):

omg ! thank you !! @nikato

OpenStudy (nikato):

no problem

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