Question

X+12=4

3x-4=11

x+7½=3,2

-7⅚+x=8⅓

2(3-x)-4(x-5)=2x+2

6-4(y-3)=22

równania

Answer 1

X + 12 = 4
x = 4 - 12
x = - 8

3x - 4 = 11
3x = 11 + 4
3x = 15 /:3
x = 5

x + 7½ = 3,2
x + 7,5 = 3,2
x = 3,2 - 7,5
x = - 4,3

-7⅚ + x = 8⅓
x = 8²/₆ + 7⅚
x = 15⁷/₆
x = 16⅙

2(3 - x) - 4(x - 5) = 2x + 2
6 - 2x - 4x + 20 = 2x + 2
- 6x + 26 = 2x + 2
- 6x - 2x = 2 - 26
- 8x = - 24 /:(- 8)
x = 3

6 - 4(y - 3) = 22
6 - 4y + 12 = 22
- 4y + 18 = 22
- 4y = 22 - 18
- 4y = 4 /:(- 4)
y = - 1

Answer 2

A. x+12=4 /-12
x=-8
B.3x-4=11 /+4
3x=15 /:3
x=5
C.x+7 1/2=3.2 /-7.5
x=-4.3
D.sorry nie widze calego
E.2(3-x)-4(x-5)=2x+2
6-2x-4x+20=2x + 2
26-6x=2x+2 /-2
2x=24-6x /+6x
8x=24 /:8
x=3
F.6-4(y-3)=22
6-4y + 12=22
18 -4y=22 /-18
-4y=4 /:-4
y=-1