Me with this geometry problem, i'd really appreciate it : )

Hello from MrBillDoesMath!

x = 31

Discussion:

angle A + angle C + angle B = 180              (180 degrees in a triangle)

angle A + 57           +  61        = 180 =>         (substitution)

angle A + 118 = 180 =>

angle A = 180 -118 = 62

By the congruence statement, angle A = angle D = 2x so

62 = 2x =>

x = 31

Thank you,

MrB

the answer is b.)

< 1=< 2

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.