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Help pls! pls explain too

Help pls! pls explain too-example-1
User Nitneq
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1 Answer

18 votes
18 votes
x=7
you're going to set them equal to each other. subtract the x's on both sides and add the number (in this case, 5) on both sides of the equation. then divide the x by the 21 (you get 21 by adding the 5 to the 16). 21/3 = 7
User Vilsad P P
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