Question

Помогите решить пожалуйста
х-2х+3=7
Х-3=2х+1

Answer 1

x - 2x + 3 = 7
x - 2x = 7 - 3
-x = 4
x = -4

x - 3 = 2x + 1
x - 2x = 1 + 3
-x = 4
x = -4

Answer 2

$1 \\ x - 2x + 3 = 7 \\ - x + 3 = 7 \\ - x = 7 - 3 \\ - x = 4 \\ x = - 4 \\ \\ 2 \\ x - 3 = 2x - 1 \\ x - 2x = 1 + 3=4 \\ - x = 4 \\ x = - 4$