Answer:
7 + 11 = 14 + 4
Step-by-step explanation:
======================================
<em>We would first rewrite what's given as:</em>
<em></em>
Then, we would simplify the right side and then solve for 'x'. 'x' would be what would be in the blank.
======================================

7 would be the missing number in the blank.
======================================
<em>Hope this helps. </em>