Given a two-way table as shown in the following picture:
As shown in the table, we need to find the variables from x to w
So, we can deduce the following relations:
From the first column:
[tex]\begin{gathered} x+2=18 \\ x=18-2=16 \end{gathered}[/tex]
And, from the fourth column:
[tex]\begin{gathered} z+20=50 \\ z=50-20=30 \end{gathered}[/tex]
And, from the first row:
[tex]x+6+y=z[/tex]
Substitute with x and z to find y
[tex]\begin{gathered} 16+6+y=30 \\ 22+y=30 \\ y=30-22=8 \end{gathered}[/tex]
And
[tex]\begin{gathered} 2+v+8=20 \\ v+10=20 \\ v=20-10=10 \end{gathered}[/tex]
u = w = 16
