What must be added to the sum of 2x + 3y and x – 4y so that the resulting sum is
6x – 3y?
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Answer:
3x-4y is the answer
Step-by-step explanation:
2x+3y + x-4y
= 2x+x+3y-4y
=3x-y
6x-3y - 3x-y
=6x-3x - 3y-y
=3x-4y
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