Answers

2016-08-04T22:31:23+08:00
2016-08-05T07:38:28+08:00
B= bike ( 2 wheels);
t= tricycles(3 wheels);

b+t= 11 riders;
b=11-t......................................1

2(b) +3(t)=29whees;

2(11-t)+3t=29wheels;

22-2t+3t= 29wheels;
t=29-22;
t=7(tricycles)

b=11-7;
  b=4(bike);

chcking;

2(4) +3(7)=29;
8 +21=29;
29=29


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