Question

 Решите уравнение: 10x+3(12-x)=1

Answer 1

10x+36-3x=1;
10x-3x=1-36;
7x=-35;
x=-35:7;
x=-5.

Answer 2

10х + 3 (12 - х) = 1
10х + 36 - 3х = 1
10х - 3х = 1 - 36
7х = -35
х = -5