If 43+21=20 51+61 =38 32+93 =82 find the value of 42+50 =?

or:If 43+21=20 51+61 =38 32+93 =82 find the value of 42+50 =?

or:If 43+21=20 51+61 =38 32+93 =82 find the value of 42+50 =?

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