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The probability of guessing the correct answer is x/3.if the probability os not guessing the correct answer is x/5,then find the value of x.(plzzz solve it

i need the answer quickly)
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The Brainliest Answer!
Probability of getting correct answer = x/3
Probability of getting the wrong answer =x/5
Probability of getting correct answer + Probability of getting wrong answer = 1
x/3 + x/5 = 1
5x/15 + 3x+15 = 1
8x/15             = 1
 x                   = 1*15/8
x                    = 15/8 = 1.875

Therefore, the value of x is 15/8 OR 1.875
2 5 2
i cant say that this is wrong.i think that if we substitute x in eq 1 and 2 and then add means we will not get 1
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