Question

AJUDEMMM PFVRR URGENTEE!!!!​

Answer 1

Resposta:

(x-15)+2x=90

x-15+2x=90

3x=90+15

3x=105

X=105/3

X=35

2x=70

X-15=20

2)

a) 18+×=180

×=180-18

×=162°

b)30

c)87°

d)64°

e)60°

f)1°

g)135°

3)

a)60+×=90

×=90-60

×=30°

b)5°

c)60°

d)75°

e)13°

4)

ex1:

5x-30+2x=180

7x=180+30

X=210/7

X=30

ex2:

x+20+3x-40=180

4x=180-20+40

x=200/4

x=50

DESCULPA A DEMORA POIS TAMBÉM ESTOU FAZENDO PROVA