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2l= P + 14...P = 2l-14
2l - 14 + l = 40
3l = 40 +14
3 l= 56
L= 18
P= 40-18= 22
2. 3a-2= b
a + 2b =17.... a= 17-2b
3 ( 17-2b )-2 = b
51 - 6b -2 = b
49=b+ 6b
7b= 49 ...b= 7 a= 17-2x7 = 3
a=3 b= 7 = 37