Question

rozwiaz rownania:

2x - 3 / 4 = 1/2 + x

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

2x+3/5 = 2-x/3 + x

3x-5/2 - 5x-1/10 = 0

x/2 = 2/5(4-x) - 4

2x - 1 /5 - x-2 /2 = 0,7x

np, 3x-5/2 to znaczy w ulamku 3x-5 a w mianowniku 2 :P

pliskka daje naj :P

Answer 1

1]

(2x-3)/4=1/2+x             /*4

2x-3=2+4x

-2x=5

x=-2,5

2]

(x+2)/9+(x-1)/3=1         /*9

x+2+3(x-1)=9

x+2+3x-3=9

4x=9-2+3

4x=10

x=10/4=5/2

3]

(2x+3)/5=(2-x)/3+x       /*15

3(2x+3)=5(2-x)+15x

6x+9=10-5x+15x

6x+5x-15x=10-9

-4x=1

x=-1/4

4]

(3x-5)/2-(5x-1)/10=0     /*10

5(3x-5)-(5x-1)=0

15x-25-5x+1=0

10x=24

x=2,4

5]

x/2=2/5(4-x)-4        /*10

5x=4(4-x)-40

5x=16-4x-40

9x=-24

x=-24/9

6]

(2x-1)/5-(x-2)/2=0,7x      /*10

2(2x-1)-5(x-2)=7x

4x-2-5x+10=7x

4x-5x-7x=-10+2

-8x=-8

x=1