Question

determine o valor de X nos ângulos suplementares ​

Answer 1

Resposta:

a)70 graus, b)18 graus, c)75 graus

Explicação passo-a-passo:

a)x+20 + x+20= 180

2x+40 = 180

2x=180-40

2x=140

x= 140:2

x= 70

b) 6x + 4x=180

10x=180

x=180:10

x=18

c)x+40 + x-10=180

2x+30=180

2x= 180-30

2x= 150

x = 150:2

x=75