Question

Determine x: Deixei uma foto

Answer 1

Resposta

A)50 B)40 C)36

Explicação passo-a-passo:

a) X+50+X+10+X-30=180

3X+50+10-30=180

3X+60-30=180

3X+30=180

3X=180-30

3X=150

X=150/3

X=50

X+10+X+50+X-30=180

50+10+50+50+50-30=180

B) X+2X+X+20=180

4X+20=180

4X=180-20

4X=160

X=160/4

X=40

X+2X+X+20=180

40+2.40+40+20=180

C) X+50+2X-30+X+X-20=180

5X=180

X=180/5

X=36

X+50+2X-30+X+X-20=180

36+50+2.36-30+36+36-20=180

ESPERO QUE AJUDOU!