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X3Y+5YX = 1,33X

In the correctly worked addition problem above, X and Y represent 2 different digits. What digit does X represent?

a. 0
b. 1
c. 4
d. 8
e. 9

1 answer

since in the ones place, X+Y=X, Y=0 and we have

X30+50X = 133X
so, X3+50 = 133 or,
10X+3 + 50 = 133
10X = 80
X = 8
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