Question

-2+8x=-12 3x-5x=-21+33 5x-3x=15-17 -7x-9x=-40+8 Решите подробно!

Answer 1

-2 + 8х = -12
8х = -12 +2
8х = -10
х = -10 : 8
х = -1,25

3х - 5х = - 21 + 33
- 2х = 12
х = 12 : (-2)
х = -6

5х - 3х = 15 - 17
2х = -2
х = -2 : 2
х = -1

-7х - 9х = -40 + 8
-16х = - 32
х = -32 : (-16)
х = 2