1) b = 840/12 - 38 = 32
2) p = 630/14 + 30 = 75
3) s = - 43 - 289/17 = 26
1)456+13b=840
12b=384
b=32
2)14p-420=630
14p=210
p=15
3)731-17s=289
-17s=-442
s=26
1) b = 840/12 - 38 = 32
2) p = 630/14 + 30 = 75
3) s = - 43 - 289/17 = 26
1)456+13b=840
12b=384
b=32
2)14p-420=630
14p=210
p=15
3)731-17s=289
-17s=-442
s=26