Question

ур-е: 8+3,5x = 5x -4

Answer 1

8+3.5x=5x-4
5x-3,5x = 8+4
1,5x=12
x=12:1,5
x=8

Answer 2

8+3,5x=5x-4;
5x-3,5x=8+4;
1,5x=12;
x=12:1,5;
x=8.