Aferry sets sail from an island located at (4,12) on a map. it's destination is ferry landing b at (6,2) how far will each ferry travel if each unit on the grid is 5.0 mile?

y = -6

Step-by-step explanation:

STEP 1:  12(5 + 2y) - distribute 12 through the parentheses which will give you

60 + 24y. (when there is a "-" in front of a expression in parentheses, change the sign of each term of the expression)

STEP 2: then collect the terms  and do 60 + 24y = 4y - 6 + 9y which will give you 13y

STEP 3: then move the variable to the left hand side and change its sign = 60 + 24y - 13y = -6 . move constant to the right hand side and change its sign like so 24y - 13y = -6 - 60

STEP 4: 24y - 13y = -6 - 60 collect the terms and youll get 11y = -6 - 60 then calculate the difference 11y = -66

STEP 5: Divide both sides of the equation by 11. y = -6 and thats your answer

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