Question

X + 1/4 = 1/2 + 2 x

3x + 1/7 = x - 1

1i3/4 - 3x = -3i1/4 - 4x

Z obliczeniami !! :)
Z góry dzx ;**

Answer 1

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

3x + 1/7 = x - 1 / -x
2x+ 1/7=-1 /-1/7
2x=-1 i 1/7 /:2
x=-8/7 :2
x=-8/7* 1/2
x=-4/7

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

Answer 2

1. x +1/4=1/2+2x /*4

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

2. 3x + 1/7 = x - 1 /*7
21x+1=7x-7
21x-7x=-7-1
14x=-8 /:14
x= -4/7

3.1i3/4 - 3x = -3i1/4 - 4x
7/4-3x=-13/4 - 4x /*4
7-12x=-13-16x
-12x+16x=-13-7
4x=-20 /:4
x=-5

Na pewno dobrze;)
pozdrawiam;)

Answer 3

X+1/4=1/2+2x
x-2x=1/2-1/4
-x=-1/2 /:(-1)
x=1.5


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

1i3/4-3x=-3i1/4-4x
3x+4x=3i1/4-1i3/4
7x=1/4 /*1/7
x=1,75