16*u-503=1097 (2565+516): v=154 12 000: (w+175)=24

16*u-503=1097; 16u=1097+503; u=1600:16; u=100; (2565+516):v=154; 3081:v=154; v=3081:154; v=20 1/154;// 12 000:(w+175)=24; w+175=12000:24; w=500-175; w=325

16×u-503=1097
16u=1097+503
16u=1600
u=1600÷16
u=100

(2564+516)÷v=154
3080÷v=154
v=3080÷154
v=20

12000÷(w+175)=24
w+175=12000÷24
w+175=500
w=500-175
w=325