If (A+B) = 16, (B+C) = 9 and (C+D) = 3, what is the value of (A+D)?  Choose the correct choice from the following options
A) 10.
B) 8.
C) 7.
D) 2.
E) -2.
Given A+B = 16 =&gt; A = 16 - B --&gt; Eq 1   B+C = 9   C+D = 3 =&gt; D = 3 - C --&gt; Eq 2   Then Eqs 1 + 2 =&gt; A + D = 16 - B + 3 - C   =&gt; 19 - (B+C)   =&gt; 19 - 9= 
<gadget id="calculator">19 - 9</gadget>
<output>10</output>
10.   Option 10....
<result>A</result>
If (A+B) = 16, (B+C) = 9 and (C+D) = 3, what is the value of (A+D)?