Star equation

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

42 · ∗8 = 2 ∗∗∗

Result

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

Solution:

Solution in text b1 =
Solution in text b1 = : Nr. 1
Solution in text b2 =
Solution in text c1 =
Solution in text c2 =

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To solve this verbal math problem are needed these knowledge from mathematics:

Do you have a linear equation or system of equations and looking for its solution? Or do you have quadratic equation?

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