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26x+113=13x+100

3y-8=y-32

7a+36=4a-12

Rezolvare integrala la toate va rog!!!


Răspuns :

26 x + 113 = 13 x + 100

26 x - 13 x = 100 - 113

13 x = - 13

x = ( - 13 ) : 13

x = - 1

______________

3 y - 8 = y - 32

3 y - y = - 32 + 8

2 y = - 24

y =  ( - 24 ) : 2

y = - 12

_______________

7 a + 36 = 4 a - 12

7 a - 4 a = - 12 - 36

3 a = - 48

a = ( - 48 ) : 3

a = - 16

26x-13x = 100-113 13x = -13 x= -13/13 x = -1 ~~~~~~~~~~~~~ 3y-y=-32+8 2y=-24 y = -24/2 y=-12 ~~~~~~~~~~~~ 7a-4a=-12-36 3a = -48 a= -48/3 a=-16