ответ:1) 6x - 3 = 4x + 1
6x - 4x = 1 + 3
2x = 4
x = 2
2) 2(4x + 2) = 3(2x + 1) + 2x
8x + 4 = 6x + 3 +2x
8x + 4 = 8x + 3
8x - 8x = 3 - 4
0 * x = - 1- корней нет
x ∈ ∅
3) 5(3x + 2) - 4x = 11x + 10
15x + 10 - 4x = 11x + 10
11x -11x = 10 - 10
0 *x = 0
x ∈ R
4) 3x + 7 - (x + 8) = 5
3x + 7 - x - 8 = 5
2x - 1 = 5
2x= 6
x = 3
ответ : при x = 3
ответ:1) 6x - 3 = 4x + 1
6x - 4x = 1 + 3
2x = 4
x = 2
2) 2(4x + 2) = 3(2x + 1) + 2x
8x + 4 = 6x + 3 +2x
8x + 4 = 8x + 3
8x - 8x = 3 - 4
0 * x = - 1- корней нет
x ∈ ∅
3) 5(3x + 2) - 4x = 11x + 10
15x + 10 - 4x = 11x + 10
11x -11x = 10 - 10
0 *x = 0
x ∈ R
4) 3x + 7 - (x + 8) = 5
3x + 7 - x - 8 = 5
2x - 1 = 5
2x= 6
x = 3
ответ : при x = 3