Question

URGENTEEEEEE!!!!!!!!!!!!!!!!​

Answer 1

Resposta:

5x-20=3x+40

5x-3x=40+20

2x=60

x=60/2

x=30

então e

3x+40+a=180

3(30)+40+a=180

90+40+a=180

a=180-130

a=50°

e

5x-20=b logo

5(30)-20=b

b=150-20

b=130°

espero que isso ajude vc