Answer:
4-4x=12+16x
−4x+4=16x+12
−4+4−4=16+12−4
-4x=16x+8
-4x-16x=16x+8-16x
-20x=8
-20x/-20 = 8/-20
x= -2/5
3\2 is the marked
y cos x,=2
3\2=0.5
x=0.5*2=3.0
=3.0*2=6.0
