Question

me ajudem pfv
questão 1: 2x+x+x=180
questão 2: 30x+4x+x=180
questão 3: x+90+2x=180​

Answer 1

Resposta:

1) 2x +x +x =180

4x =180

x =180/4

x =45

2) 30x +4x +x =180

35x =180

x =180/35

x =5,14

3) x +90 +2x =180

3x =180 -90

3x =90

x =90/3

x =30

Answer 2

1)

2x + x + x = 180

4x = 180

x = 180 / 4

x = 45

2)

30x + 4x + x = 180

35x = 180

x = 180 / 35

x = 5,14285714286

3)

x + 90 + 2x = 180​

x + 2x = 180 - 90

3x = 90

x = 90 / 3

x = 30