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Answer:
3(1+y) + 7(3+y) = 11y
Step-by-step explanation:
3(1+y) + 7(3+y) = 11y
3+3y + 21+7y = 11y
21+3+7y+3y =11y
24 + 10y =11y
24 = 11y - 10y
24 = 1y
Therefore y = 24
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solution
3 + 3y + 7 ( 3 + y ) = 11y
3 + 3y + 21 + 7y = 11y
24 + 3y + 7y = 11y
24 + 10y = 11y
24 + 10y - 11y = 0
24 - y = 0
- y = - 24
y = 24
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