Respuesta :

Explanation:

y = 2(x -1)

Expand the parenthesis:

y = 2x - 2

interchange x and y in the equation above:

x = 2y - 2

Then make y the subject of the formula:

add two toth sides: x +2 = 2y - 2

x + 2 = 2y

divide both sides by 2:

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