Question

Решите уравнение х+х+10+0,3•(2х+10)=65

Answer 1

2x+10+0.6x+3=65 2.6x=52 x=20

Answer 2

x+x+10+0.3*(2x+10)=65
2x+10+0.3*(2x+10)=65
2x+0.6x+3=65-10
2.6x=55-3
2.6x=52
x=20