Question

resolva a equação de 2x+x=7-10 x

Answer 1

2x+x=7-10x
2x+x+10x= 7
13x=7
x=7/13

Answer 2

2x + x = 7 - 10 x
3 x = 7 - 10x
10 x + 3x = 7
13 x = 7
x = 7/13