Respuesta :

bs9107237

Answer:

YZ=8

Step-by-step explanation:

1/2*VX=yz

1/2(106-10x)=21-x

106-10x=42-2x

106-42=10x-2x

64=8x

x=8

sub in 21-x

=21-8

=13

xenia168

Answer:

YZ = 13 units

Step-by-step explanation:

VX = 2YZ

106 - 10x = 2(21 - x)

106 - 10x = 42 - 2x

8x = 106 - 42

x = 8

YZ = 21 - 8 = 13 units