1. 1.
    +1
    a + b = a x (b+1) + b
    3+4=19 3x(4+1)=15 ll 15+4=19
    6+5=41 6x(5+1)=36 ll 36+5=41
    3+1=? 3x(1+1)=6 ll 6+1=7

    edit=cevap = 7
    ···
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