Emory used these steps to solve the equation.
x + 7 = 3x + (β5).
1. add 1 ne...
Mathematics, 11.11.2019 20:31, 76022sfox
Emory used these steps to solve the equation.
x + 7 = 3x + (β5).
1. add 1 negative x-tile to both sides and create zero pairs.
2. add 7 negative unit tiles to both sides and create zero pairs.
3. divide the 12 negative unit tiles evenly among the 2 x-tiles.
4. the solution is x = β6.
where did emory make an error?
in step 1, he should have added 3 negative x-tiles to both sides.
in step 2, he should have added 5 positive unit tiles to both sides.
in step 3, he did not divide the tiles evenly.
in step 4, he should have found the solution x = 3.
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