div class=trans-pagebuttonPage 1button div class=trans-image a href=https:reader038fdokumencomreader038viewer2023031105632531254643260de90d9fcchtml5page1jpg target=_blank amp-img class=trans-thumb alt=Page 1: Mixed problems in several variables src=https:reader038fdokumencomreader038viewer2023031105632531254643260de90d9fcchtml5thumbnails1jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=trans-pagebuttonPage 2button div class=trans-image a href=https:reader038fdokumencomreader038viewer2023031105632531254643260de90d9fcchtml5page2jpg target=_blank amp-img class=trans-thumb alt=Page 2: Mixed problems in several variables src=https:reader038fdokumencomreader038viewer2023031105632531254643260de90d9fcchtml5thumbnails2jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=trans-pagebuttonPage 3button div class=trans-image a href=https:reader038fdokumencomreader038viewer2023031105632531254643260de90d9fcchtml5page3jpg target=_blank amp-img class=trans-thumb alt=Page 3: Mixed problems in several variables src=https:reader038fdokumencomreader038viewer2023031105632531254643260de90d9fcchtml5thumbnails3jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=trans-pagebuttonPage 4button div class=trans-image a href=https:reader038fdokumencomreader038viewer2023031105632531254643260de90d9fcchtml5page4jpg target=_blank amp-img class=trans-thumb alt=Page 4: Mixed problems in several variables src=https:reader038fdokumencomreader038viewer2023031105632531254643260de90d9fcchtml5thumbnails4jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=trans-pagebuttonPage 5button div class=trans-image a href=https:reader038fdokumencomreader038viewer2023031105632531254643260de90d9fcchtml5page5jpg target=_blank amp-img class=trans-thumb alt=Page 5: Mixed problems in several variables src=https:reader038fdokumencomreader038viewer2023031105632531254643260de90d9fcchtml5thumbnails5jpg width=142 height=106 layout=responsive amp-imga divdivdiv...