Perimeter of a triangle
posted by Jone on .
Perimeter of a triangle. The perimeter of the triangle
shown in the accompanying figure is 12 meters. Determine
the values of x, x + 1, and x + 2 by solving the equation
x + (x + 1) + (x + 2) = 12.

x + (x + 1) + (x + 2) = 12
3x + 3 = 12
3x = 9
x = 3
3 + 1 = 4
3 + 2 = 5 
idk how to do this

12 meters but i still don't get this

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