Question

-5 + 7x = 17x
-8+4x = -1x
2 (3x + 4) -7 =0
3x -5 =2x+9
7x-12 =5x+13
Pliss pomurzcie daje najj

Answer 1

-5 + 7x = 17x
7x - 17x = 5
-10x = 5      /:(-10)
x = -1/2 


-8 + 4x = -x
4x + x = 8
5x = 8      /:5
x = 8/5 = 1³/₅ 


2(3x + 4) - 7 = 0
6x + 8 - 7 = 0
6x + 1 = 0
6x = -1      /:6
x = -1/6 


3x - 5 = 2x + 9
3x - 2x = 9 + 5
x = 14 


7x - 12 = 5x + 13
7x - 5x = 13 + 12
2x = 25      /:2
x = 12¹/₂