Answer:
x + 5 + 5x + 10 + 2y = 6x + 2y + 15
Explanation:
Group like terms
= x + 5x + 2y + 5 + 10
Add the number 5 + 10 = 15
= x + 5x + 2y + 15
Add similar elements x + 5x = 6x
= 6x + 2y + 15
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