Question

MMMMMMEEEEE AAAAAJJJUUUUDUDDDEEEEEEEMMMMMM​

Answer 1

Resposta:

a)2x+50=90

x=40/2=20°

b)x+60=90

x=90-60=30°

c)x+10+x-20=90

2x-10=90

2x=90+10

2x=100

x=50°

d)30+(x/2)=90

x/2=90-30

x=2×60

x=120

e)2x+120=180

2x=180-120

2x=60

x=60/2=30°

f)x-30+2x+30=180

3x=180

x=180/3=60°

g)x+40=120

x=120-40

x=80°

h) 5x-60=3x+20

5x-3x=20+60

2x=80

x=80/2

x=45

2)

20+40+x=90

60+x=90

x=90-60=30°

Answer 2

Explicação passo-a-passo:

a) 2x + 50 = 90 b) x + 60 = 90

2x = 90 - 50 x = 90 - 60

2x = 40 x = 30°

x = 40/2

x = 20°

c) x + 10 + x - 20 = 90 d) x/2 + 30 = 90

x + x = 90 +20 - 10 x + 60/2 = 180/

2x = 100 x + 60 = 180

x = 100/2 x = 180 - 60

x = 50° x = 120°

e) 2x + 120 = 180 f) x - 30 + 2x + 30 = 180

2x = 180 - 120 x + 2x = 180 - 30 + 30

2x = 60 3x = 180

x = 60/2 x = 180/3

x = 30° :x = 60°

g) x + 40 = 120 h) 5x - 60 = 3x + 20

x = 120 - 40 5x - 3x = 20 + 60

x = 80° 2x = 80

x = 80/2

x = 40°

________________________________

20 + x + 40 = 90

x = 90 - 40 - 20

x = 30°