5x+4x+3x=24
12x=24
x=2
x1=5*2=10
x2=4*2=8
x3=3*2=6
p=10+8+6=24
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5x+4x+3x=24
12x=24
x=2
x1=5*2=10
x2=4*2=8
x3=3*2=6
p=10+8+6=24