Question

Ayudenme...!! Xfaa. ​

Answer 1

1- 8x + 7x + 3x = 180

18x = 180 la 1 sale '10' la alternativa 'c'

x= 10

2- x + 10 + x + 4x - 10 = 180

x + x + 4x = 180

6x= 180 LA 2 sale '30' la alternativa c

x= 30