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5. Rozwiąż równania
a) 4x – 3 = 9
b) 6x-2=10x
d) 3(x + 3) = 2x – 1
e) 4x=48​


Odpowiedź :

A) 4x - 3 = 9 |+3

4x = 12 |:4

x = 3

B) 6x - 2 = 10x |+2

6x = 10x + 2 |-10x

-4x = 2 |:-4

x = -0,5

C) 3(x + 3) = 2x - 1

3x + 9 = 2x - 1 |-2x

x + 9 = - 1 |-9

x = -10

D) 4x = 48 |:4

x = 12

Pozdrawiam~Haruqe