Hey there!
4x + 2y + x - y
= 4x + 2y + 1x - 1y
COMBINE the LIKE TERMS
= (4x - 1x) + (2y - 1y )
= 4x - 1x + 2y - 1y
= 3x + 1y
= 3x + y
Therefore, your answer is: 3x + y
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)
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