Question

Решить уравнение и выполнить проверку: x-(-16)=-49; -53-x=-47; -7+x=-56; x+(-26)=-48

Answer 1

х - (-16) = - 49
х  + 16  = -49
х= - 49 - 16 = - (49+16)
х =- 65
=======================
-65 - (-16) = - 49
-65 + 16 = - 49
- (65 - 16) = - 49
-49= - 49

-53 - х = -47
-х = -47 + 53
-х = 6
х= -6
=============
-53 - (-6) = -47
-53 + 6 = -47
-47 = -47

-7 + х = -56
х= -56 + 7
х =-49
==========
-7 + (-49) = -56
-56=-56

х + (-26) = - 48
х = -48 +26
х = - (48-26)
х = -22
==============
-22 + (-26) = -48
-48 = - 48

Answer 2

х - (- 16) = - 49
х + 16 = - 49
х = - 49 - 16
х = - 65
------------------------------
- 56 - (- 16) = - 49
- 56 + 16 = - 40
- 40 = - 40

- 53 - х = - 47
- х = - 47 + 53
- х = 6
х = - 6
------------------------------
- 53 - (- 6) = - 47
- 53 + 6= - 47
- 47 = - 47

- 7 + х = - 56
х = - 56 + 7
х = - 49
----------------------------
- 7 + (- 49) = - 56
- 7 - 49 = - 56
- 56 = - 56

х + (- 26) = - 48
х = - 48 + 26
х = - 22
-------------------------------
- 22 + (- 26) = - 48
- 22 - 26 = - 48
- 48 = - 48