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If x+y=10 and x=4 then 4+y=10whats the property?

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Answer:

Substitution property

Step-by-step explanation:

If x+y=10 and x=4

Replacing x with 4 in x+y=10 will give us:

4+y =10

This act of replacement is referred to as Substitution.

Therefore, the substitution property was used.

User Rajkumar K
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