Star equation

Write digits instead of stars so that the sum of the written digits is odd and is true equality:

42 · ∗8 = 2 ∗∗∗

Correct answer:

b1 =  48
b2 =  68
c1 =  2016
c2 =  2856

Step-by-step explanation:

a=42 s1=a 18=42 18=756 s2=a 28=42 28=1176 s3=a 38=42 38=1596 s4=a 48=42 48=2016 s5=a 58=42 58=2436 s6=a 68=42 68=2856 s7=a 78=42 78=3276 2000<=s<=2999 S=2016,2436,2856 x1=4+0+1+6=11 x2=5+4+3+6=18 x3=6+8+5+6=25 x1=nepar b1=48
b2=68
c1=a b1=42 48=2016
c2=a b2=42 68=2856



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