rich1.0Newniu wroteNewniu (npub1zt…juvde)https://yabu.me/npub1ztpqufgyft9wkxn6nrtmc44ra7ka4txwwr00yglc08esueewzvfqejuvdenjumphttps://yabu.me计算一道数学题 x加y等于11 x减y等于3 求出x和y的数值