Danbooru-based image board with a specialization in high-quality images.
crossover gochuumon_wa_usagi_desu_ka? hoto_cocoa inokuma_youko kafuu_chino kazenokaze kin'iro_mosaic kirima_sharo komichi_aya neko nichijou sakamoto seifuku tedeza_rize thighhighs tippy_(gochuumon_wa_usagi_desu_ka?) ujimatsu_chiya

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it says 27 + 2y +30 = 77, yet asks for "X"...?
Rize could be Ayaya's older sister.
Cruizy said:
it says 27 + 2y +30 = 77, yet asks for "X"...?
27+2y+30=77
2y=77-30-27
y=(77-30-27)/2
y=20/2
y=10

and I wonder how they write those names in a typography font on blackboard(greenboard?).
every time i saw an amusing comment...and then Ikyo ruined it,FML
milumon said:
every time i saw an amusing comment...and then Ikyo ruined it,FML
yeah, can't agree more