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2(p+0,1) + 4(p-0,1) + p-0,5 + 3(p+q) = 10p
2p + 0,2 + 4p - 0,4 + p -0,5 + 3p + 3q = 10p
10 p - 0,7 + 3q = 10p
3q = 0,7
q = 0,7/3
= 7/30 = 0,233333333
^_^
30p+9q-2,1=30p
9q=2,1
q=2,1/9=0,7/3=7/10.1/3=7/30=0,23333.....