Question 771589
The is a triangle with little equations on each angles the first one is (6x-17) the second one is (4x-12) and the third one is (2x+5). What is the measure of the second largest angle?
------------
Those are not equations.
Equations have equal signs.
equal, equate, equation.
--------------
Add the 3 expressions.  The total is 180 degrees.