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12. When Raphael solved the system below by using the method of elimination, he changed the second equation to -8x – 2y=-2. What property justifies this manipulation? 8x + 3y = …

12. When Raphael solved the system below by using the method of elimination, he changed the second equation to -8x – 2y=-2. What property justifies this manipulation? 8x + 3y = …
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12. When Raphael solved the system below by using the method of elimination, he changed the second equation

to -8x – 2y=-2. What property justifies this manipulation?
8x + 3y = 7
4x + y = 1

asked
User Rzymek
by
8.2k points

1 Answer

9 votes

Answer:

Multiply an equation by a scalar

Explanation:

answered
User Coryj
by
8.3k points
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