Suppose angle abc is congruent to angle def find the value of x

11 + x

Step-by-step explanation:

Let's write out each of the answer choices:

A) 11x

B) 11 + x

C) 11 minus x  ⇒  11 - x

D) Negative x + 11  ⇒  -x + 11

Examine each of them. Clearly, A and D aren't the same (A is multiplication, not addition, and D has a negative x instead of a positive x). C is actually the same as D, if you switch the places of 11 and -x: 11 - x = -x = 11.

Finally, answer choice B is correct because by the Commutative Property of Addition, 11 + x = x + 11.

Hope this helps!