Question

Determine para amanhã me ajude pfvr

Answer 1

A) 2x+20=50
2x=50-20
2x=30
x=30/2
x=15°

B)2x-30= x/2 +20
2x-x/2=+20+30
2x-x/2=50°
$\frac{4x + x = 150}{2}$
5x=150
x=150/5
x= 30°

C)x+20=2x+16
x-2x= 16-20
-x= -4 (-1)
x= 4