X, Y, Z
Algebra
Level
1
If X+Z=23, Y+Y=0 and X+Y=20, what are X, Y, and Z?
3, 0, and 20
20, 3, and 0
20, 0, and 3
0, 3, and 20
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From the second equation we can say y=0 , then from the third equation we can say x=20 and then from the first equation we can say that z=3 .