Question

( / to pod kreską )

a)6/x= 2/3

b)x/12=4/8

c)3-2x/7=3/2x-1

d)x+2/x-1=3/2x-¼

e)1/x-1=3/2x-1

f)2x+3/x+3=2x-1/x-3

Tu już normalnie :

a)x(x+4)=(x+1)(x+2)

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

c)(x+1²)+2x+2=(x-1)²-4

d)2x(x+3)+(x+4)²=(x-1)(3x+2)+3

e)3x(2x-3)-5(x-1)²-(x+2)(x-2)=0

f)1+2x²+(x+5)²-2(x-7)(x+7)=(x-6²)

Answer 1

a)6/x=2/3

6*3=2x

18=2x

x=9

b) x/12=4/8

8x=48

x=9

c)(3-2x)/7=(2x-1)3

(3-2x)3=(2x-1)7

9-9x=14x-7

9+7=14x-7

16=21x

x=21/16

 

Answer 2