Question

Решите уравнение,пожалуйста.

Answer 1

a) - 2х + 5 = - 5х
- 2x + 5x = - 5
3x = - 5
x = -5/3
x = - 1 2/3 минус одна целая две третьх)

б)  6 - 5x = 2x + 5
- 5x - 2x = 5 - 6
- 7x = - 1
7x = 1
x = 1/7

в) 2 (x + 1) = 3
2x + 2 = 3
2x = 1
x = 1/2
x = 0,5

г) 9 - 2(3 - 4x) = - 2x + 1
9 - 6 + 8x = - 2x + 1
8x + 2x = 1 - 9 + 6
10x = - 2
x = - 5

д) x/2 + x/4 = 3/2
2x/4 + x/4 = - 12/4
3x = -12
x = - 4



(2x - 1)/6 - x/3 = (5 - x)/9
3*(2x - 1)/18 - 6x/18 = 2*(5 - x)/18
5x - 3 - 6x = 10 - 2x
5x - 6x + 2x = 10 + 3
x = 13

Answer 2

Спасибо огромное)