Posted in MSKH, Հանրահաշիվ, Նախագիծ, Uncategorized Հանրահաշիվ Posted on November 18, 2020 by sedaengibaryan x, y {x-y=10 {3x+y=70 x-y+ 3x+y=10+70 4x=80 x=20 y= 10 Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Like Loading... Related Author: sedaengibaryan View All Posts