You walk four blocks east along 12 th Street, then two blocks west, then one block east,

Question:

You walk four blocks east along 12 th Street, then two blocks west, then one block east, then five blocks east, then seven blocks west. Let the $x$ axis point east and have its origin at your starting point. If all blocks are equal in size, what is the $x$ component of your displacement, in blocks?

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