Question $17(4$ points$)$

Suppose that $x_A$ equals. $10.$ What are the values for $d_1^{+}$and $d_1^{-}$in the following constraint?

$x_{A+}{d}_1-d_{1+}=7$

$d_{1-}=0,d_1+=7$

$d_1==3.d_1+=0$

$d_1=7,d_1+=0$

$d_1^{-}=0,1_1^{+}=3$

$d_1^{-}=10,d_1^{+}=3$