Question

Решите уравнения.
4x–6,4=2x–1,2
5x+3=7x–5(2x+1)

Answer 1

4x-6,4=2x-1,2
4x-2x=-1,2+6,4
2x=5,2
x=2,6

5x+3=7x-5(2x+1)
5x+3=7x-10x-5
5x+3=-3x-5
5x+3x=-5-3
8x=-8
x=-1

Answer 2

...
2х=5.2
х=2.6

2) 8x=-8
x=-1