Question

X, 3x and 5x ,find the sum
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Answer 1

Answer: 9x

Explanation:

As the variables are of same power (1) we can add it

x+3x+5x=9x

Answer 2

x + 3x + 5x ( the variables are same you can add them immediately )

9x ( the answer is 9x for adding terms with the same variable just add the numbers and write the variable as itself)

HOPE IT HELPS