I don’t understand the question

Bennidhamma asked Sep 7, 2023

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3 votes

Bennidhamma asked Sep 7, 2023

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13 votes

Explanation:

what is the question ?

I guess it means to add the reason to step 4.

the reason is the same as for step 6 : subtraction property of equally.

because CD was deleted on both sides of the equation.

Ivo P answered Sep 11, 2023

by Ivo P

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