She can simplify the 12 and the 3.
Answer is 60 U need to calculate carefully with brackets involving multiplication
This is a typical algebra problem pretending to be geometry. The two indicated angles are supplementary, adding to 180 degrees, precisely when the lines are parallel.
It's not really indicated, but the 8 and the 2 are in units of degrees.
6x + 8 + 4x + 2 = 180
10x = 170
x = 17 degrees
I don't know if this helps but my calculator said 4.2189246e+21
