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•x+6= -22 ---> X = - 22 - 6 ---> X = - 28 --->
X/1 = - 28/ 1 ---> [X = - 28]
•-2= x - 723 ---> - X = - 723 + 2 ---> - X = - 721 --->
-X/-1 = - 721/- 1 ---> [ X = 721]
•1-8= 623 +x ---> - X = 623 - 1 + 8 ---> - X = 630
---> - X/-1 = 630/-1 ---> [ X = - 630]
•-9= x - 25 ---> - X = - 25 + 9 ---> - X = -16 --->
- X/-1 = - 16/ -1 ---> [ X = 16]
•-25 + x= 0 ---> X = 0 + 25 ---> X = 25 --->
X/1 = 25/1 ---> [ X = 25]
☆Comprobación:
•x+6= -22 ---> ( - 28) + 6 = - 22---> - 22 = - 22✔
•-2= x - 723 ---> - 2 = ( 721) - 723 ---> - 2= - 2 ✔
•1-8= 623 +x ---> 1 - 8 = 623 + (- 630) --->
- 7 = 623 - 630 ---> - 7 = - 7 ✔
•-9= x - 25 ---> - 9 = (16) - 25 ---> - 9 = - 9 ✔
•-25 + x= 0 ---> - 25 + ( 25) = 0 ---> - 25 + 25 = 0
---> 0 = 0✔
☆Respuesta:
•[X = - 28]
•[ X = 721]
•[ X = - 630]
•[ X = 16]
•[ X = 25]