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11. Să se afle x nu
a) 3(x + 2) + 2x = 61. B) 3(2x-4)+x=37. Plsss​


Răspuns :

a) 3(x+2)+2x=61
3x+6+2x=61
5x=61-6
5x=55
x=11
b) 3(2x-4)+x=37
6x-12+x=37
7x=37+12
7x=49
x=7

Răspuns:

a) 3(x+2)+2x=61

3x+6+2x=61

5x+6=61

5x=61-6

5x=55

x=55:5

x=11

b) 3(2x-4)+x=37

6x-12+x=37

7x-12=37

7x=37+12

7x=49

x=49:7

x=7