ыберите уравнения, решениями которых является число 49.
1) 56 + 67 - (34 + х) = 73,
2) 38 + (98 - ( 45 +х))= 42,
3) 78 - ( х -84) - 92= 13, 
4) 45 +( 97 - ( х +28)) =65

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