Subtract 4 from the sum of 3x and 7y
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Answer:
( 3x + 7y ) - 4
Step-by-step explanation:
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Answer:
Sum : (3x+4y+z)+(−6x+7y−8z)=−3x+11y−7z
Now, −3x+11y−7z− (4x−2y+z)=−7x+13y−8z
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