a/ -6 (x - 4) = -3 (-2x -5)
b/ x+5/3 = x/2
c/ 5x - 2/2 + 3x - 7 / -6 = 1/2
d/ (2x + 5) (x-2) / 2 = x^2

blagam szybko​


Odpowiedź :

a) -6(x-4)=-3(-2x-5)

-6x+24=6x+15

12x=9

x=9/12

x=¾

b) x+5/3=x/2

2x+10/3=x

x=-10/3

x=-3⅓

c) 5x-2/2+3x-7/-6=1/2

5x-1+3x+7/6=1/2

8x+⅙=½

8x=⅓

x=1/24

d) (2x+5)(x-2)/2=x2

(2x2-4x+5x-10)/2=x2

x2-2x+2,5x-5=x2

-2x+2,5x=5

0,5x=5

x=10

Viz Inne Pytanie