Answer:
9.5
Step-by-step explanation:
13x+1+12x-2+14x+1+109+132+128
collect all the like terms
13x+12x+14x
=39x
1+-2+1+109+132+128
=369
39x=369
divide both sides by 39
=9.5
girls plays football = 16 boys plays football = 28 girls does not = 32 boys does not = 14 total number of boys = 42
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