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This question contains adding with the same polynomial x

The first step of the question is to calculate the LCM of the denominators 9 and 3, is 9.

Now 1 /9 and 1 /3 can be subtracted with the LCM of the denominators as 9.

This makes the solution x

Hence the solution is -2x

The given question is on Adding rational expressions.

This question contains adding with the same polynomial x.

The first step of the question is to calculate the LCM of the denominators 5 and 4, is 20.

Now 1 / 5 and 3 /4 can be added with the LCM of the denominators as 20.

This makes the solution x / 5 + 3 x / 4 = 4 x /20 +15 x /20 = 19 x / 20.

Hence the solution is 19x/ 20.