Question

3×{5+(...)} = 3×5+3×(-2)​

Answer 1

Answer:

3×{5+(-2)} = 3×5+3×(-2)

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Answer 2

Let the required no. be x .

Hence,

3(5+x) = 3×5+3×(-2)

3(5+x) = 15+(-6)

3(5+x) = 15-6

5+x = 9/3

x = 3-5

x = -2