0.5X+0.5X=6.5

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0.5X+0.5X=6.5

0.5X+0.5X=6.5
(0.5+0.5)x=6.5
1x=6.5
x=6.5

0.5X+0.5X=6.5
X = 6.5

0.5X+0.5X=6.5
X=6.5