Question

Cum sa calculez aceste exercitii:
5x-15= -5
6x-13= -49
12x+50= -46
-4x+12= -12
-8x-24=-16
-7x+13=90
x/(-4)+15=11
-5x+12=37
-8x-58= -10
12x-17=7
6x-13= -49
-3x-15=-27
9x+3x+6x= -54
8x-4x-2x=22
-5x-3+44x=32
7x+2x-9x= -56
-7x-1233= -10
-5x-19+19=65
x+70= -100
y+8=2000
z+29= -718
3x=81
(-11)*y=121
(-35)*z= -210
x/(-8)= -20
y/38=10
zx/(-19)= -18
Vă rog frumos dau 65 puncte,am nevoie acum!!

Answer 1

5x-15= -5
5x=15-5
5x=10
x=10:5
x=2

6x-13= -49
6x=13-49
6x=-36
x=-36:6
x=-6


12x+50= -46
12x=-46-50
12x=-96
x=-96:12
x=-8

-4x+12= -12
-4x=-12-12
-4x=-24
x=-24:-4
x=6

-8x-24=-16
-8x=-16+24
-8x=8
x=8:(-8)
x=-1

-7x+13=90
-7x=90-13
-7x=77
x=77:(-7)
x=-11

x/(-4)+15=11
x/(-4)=11-15
x/(-4)=-4
x=(-4)*(-4)
x=16

-5x+12=37
-5x=37-12
-5x=25
x=25:(-5)
x=-5

-8x-58= -10
-8x=-10+58
-8x=48
x=48:(-8)
x=-6

12x-17=7
12x=7+17
12x=24
x=24:12
x=2

6x-13= -49
6x=-49+13
6x=-36
x=(-36):6
x=-6

-3x-15=-27
-3x=-27+15
-3x=-12
x=(-12):(-3)
x=4

9x+3x+6x= -54
18x=-54
x=(-54):18
x=-3

8x-4x-2x=22
2x=22
x=22:2
x=11

-5x-3+44x=32
39x-3=32
39x=32+3
39x=35
x=35/39
x=0,897

7x+2x-9x= -56
0x=-59
x nu are solutii


-7x-1233= -10
-7x=-10+1233
-7x=1223
x=174.71

-5x-19+19=65
-5x=65
x=65:(-5)
x=13


x+70= -100
x=-100-70
x=-170

y+8=2000
y=2000-8
y=1992

z+29= -718
z=-718-29
z=-747

3x=81
x=81:3
x=27

(-11)*y=121


(-35)*z= -210
z=(-210):(-35)
z=6

x/(-8)= -20
x=(-20)*(-8)
x=160

y/38=10
y=10*38
y=380

zx/(-19)= -18
zx=(-18)*(-19)
zx=342

Answer 2

5x-15= -5 

5x=10
x=10:5
x=2


6x=13-49
6x=-36
x=-36:6
x=-6




12x=-96
x=-96:12
x=-8

-4x+12= -12
-4x=-12-12
-4x=-24
x=-24:-4
x=6

-8x-24=-16
-8x=-16+24
-8x=8
x=8:(-8)
x=-1

-7x+13=90
-7x=90-13
-7x=77
x=77:(-7)
x=-11


x/(-4)=11-15
x/(-4)=-4
x=(-4)*(-4)
x=16


-5x=37-12
-5x=25
x=25:(-5)
x=-5

-8x-58= -10
-8x=-10+58
-8x=48
x=48:(-8)
x=-6


12x=7+17
12x=24
x=24:12
x=2


6x=-49+13
6x=-36
x=(-36):6
x=-6

-3x-15=-27
-3x=-27+15
-3x=-12
x=(-12):(-3)
x=4

9x+3x+6x= -54
18x=-54
x=(-54):18
x=-3

8x-4x-2x=22

x=22:2
x=11

39x-3=32
39x=32+3
39x=35
x=35/39
x=0,897

7x+2x-9x= -56
0x=-59
x nu are solutii




-7x=1223
x=174.71


-5x=65
x=65:(-5)
x=13



x=-100-70
x=-170


y=2000-8
y=1992


z=-718-29
z=-747

3x=81
x=81:3
x=27

(-11)*y=121



z=(-210):(-35)
z=6


x=(-20)*(-8)
x=160


y=10*38
y=380


zx=(-18)*(-19)
zx=342