Answer:
6
Explanation:
TV(19)- UV(13) = TU(6)
Just draw a number line like this:
T---U----V
? ¹³
¹⁹
Since we know that U is on TV, this means that:
We already know that UV is 13 and TV is 19. Substitute:
Subtract 13 from both sides:
And we're done!
Sketch:
T------------U--------------------------V
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