Solve the Equation: Finding the Missing Number in 9+?-3=25

9+?−3=25 9+?-3=25

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00:20 We will subtract 6 from both sides in order to isolate the unknown

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1

Understand the problem

9+?−3=25 9+?-3=25

2

Step-by-step solution

To find out which number is missing, we solve the entire exercise to know which number we will have to add to get a result of 25:

9−3=6 9-3=6

To make 6 equal to 25 we will have to add 19.

Let's verify:

25−6=19 25-6=19

3

Final Answer

19 19

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\( 8 - 2 + 6 = \)

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