Question

Rezolvati ecuatia si aflati m(A):
2[ ( 180-m(A) supra 2 )÷2 ] +3 ·m(A) =180
Va rog demonstrati si aflati A!!

Answer 1

2 [ 180 - m(A)  ] /2 :2  +3 m(A) = 180 
[ 180 -m(A) :2 + 3m(A) =180 
180 - m(A) + 6m(A) = 360 
5m(A)= 360  - 180 
5m(A) = 180
m(A) = 180 :5 =  36