Odpowiedź :
y - 5,2 = -6
y = -6 + 5,2
y = -0,8
x + 1,75 = 0,4
x = 0,4 - 1.75
x = -1,35
3x = 75|: 3
x = 25
8y = 24|: 8
y = 3
15y = 105|: 15
y = 7
12x = 36|: 12
x = 3
2x - 3 = 15
2x = 15 + 3
2x = 18|: 2
x = 9
2y + 7 = 12
2y = 12 - 7
2y = 5|: 2
y = 5/2
y = 2 1/2
3x - 8 = 20
3x = 20 + 8
3x = 28|: 3
x = 28/3
x = 9 1/3
2x + 10 = -4
2x = -4 - 10
2x = -14|: 2
x = -7
x - 2 = 2x - 4
x - 2x = -4 + 2
-x = -2|* (-1)
x = 2
4 - x = 13 + 3x - 1
-x - 4x = 13 - 1 - 4
-5x = 8|: (-5)
x = -8/5
x = -1 3/5
3x - 3 = -2x +8
3x + 2x = 8 + 3
5x = 11|: 5
x = 11/5
x = 2 1/5
3x - 1 = 5 - 4x - 1
3x + 4x = 5 - 1 + 1
7x = 5|: 7
x = 5/7
7x + 6 + 4x = 9 - 2x + 7 + 81
7x + 4x + 2x = 9 + 7 + 81 - 6
13x = 91|: 13
x = 91/13
x = 4 1/2
y-5,2= -6|+5,2
y=-0,8
x+1,75=0,4|-1,75
x=-1,35
3x=75|:3
x=25
8y=24|:8
y=3
15y=105|:15
y=7
12x=36|:12
x=3
2y+7=12|-7
2y=5|:2
y=2,5
3x-8=20|+8
3x=28|:3
x=28/3
2x+10=-4|-10
2x=-14|:2
x=-7
x-2=2x-4|-x
-2=x-4|+4
2=x
4-x=13+3x-1|-4
-x=13+3x-1-4|-3x
-4x=13-5|:-4
x=-2
3x-3=-2x+8|+3
3x=2x+11|-2x
x=11
3x-1=5-4x-1|+4x
7x-1=5-1|+1
7x=5|:7
x= 5/7
7x+6+4x=9-2x+7+81|+2x
11x+2x+6=9+7+81|-6
13x=9+7+81-6
13x=3+7+81
13x=91|:13
x=7
nie jestem pewna czy jest dobrze ale chyba jest git
dobra na pewno jest zle