Question

Find the sum of 5a,a,-5a​

Answer 1

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Answer 2

5a + a + ( -5a ) = a

Because the result of adding a positive integer with a negative integer is always a negative integer, here we can see the last two terms a and (-5a).

When adding the three like terms, the first and the last term gets cancelled because they are the complete opposite of each other like 5a - 5a equals 0, hence leaving us the term “a” .