Mathegoras

Arithmetic › Integers and signed numbers › Adding signed numbers

Three numbers from pairwise sums

Middle school · ●○○○○ 10 pts

Let the three numbers be xx, yy and zz with x+y=10x+y=10, y+z=19y+z=19 and x+z=21x+z=21. Find xx, yy and zz.

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systems of linear equations