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80 = 3y + 2y + 4 + 1

Collect 'like terms'.

80 = 5y + 5

Substract '5' from noth sides

75 = 5y

5y = 75

Divide both sides by '5'

y = 15 The answer!!!!!

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lenpollock

Lvl 16
2w ago

What else can I help you with?