Subtract 45 on each side so it would be
0.15X=104 then divide both sides by 0.15X
then X= 700
27, just multiply30 by 9/10
Angle A and angle B sums up to 180 (interior angles)
6x - 35 + 3x + 53 = 180
9x + 18 = 180
9x = 162
x = 18
angle A = 6(18)-35 = 73 degrees
246 divided by 3 should equal 82