Question

A 8 -14=2X



B 0,8+2X =X +3,5


C y +9y+5=-15

D 5X+4=3X-2X+4

E 21X+1=11X+6

F 5-X-22=4X-11-6X

G 16-X=X+25

H 3,5X+1=3,1X+3

Answer 1

A) - 2x = 14 - 8
- 2x = 6 ( - 1 )
2x = - 6
x = - 6/2
x = - 3
B) 2x - x = 3,5 - 0,8
x = 2,7
C) y + 9y = - 15 - 5
10y = - 20
y = - 20/10
y = - 2
D) 5x - 3x + 2x = 4 - 4
2x + 2x = 0
4x = 0
x = 0/4
E) 21x - 11x = 6 - 1
10x = 5
x = 5/10 simplificar por 5
x = 1/2
F) - x - 4x + 6x = - 11 + 22 + 5
- 5x + 6x = 11 + 5 ( - 1 )
5x - 6x = - 11 - 5
- x = - 16 ( - 1 )
G) - x - x = 25 - 16
- 2x = 19 ( - 1 )
2x = - 19
H) 3,5x - 3,1x = 3 - 1
0,4× = 2
x = 0,4x/2
x = 0,2

Answer 2

Explicação passo-a-passo:

8 -14=2x

-6=2x

2x=-6

x=-6/2

x=-3

0,8+2X =X +3,5

2x-x=3,5-0,8

x=2,7

y +9y+5=-15

10y+5=-15

10y=-15-5

10y=-20

y=-20/10

y=-2

5X+4=3X-2X+4

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

2x+2x=0

4x=0

x=0/4

x=0

21X+1=11X+6

21x-11x=6-1

10x=5

x=5/10(÷5)

x=1/2

5-X-22=4X-11-6X

-x-17=-2x-11

-x+2x=-11+17

x=6

16-X=X+25

-x-x=25-16

-2x=9

x=-9/2

3,5X+1=3,1X+3

3,5x-3,1x=3-1

0,4x=2

x=2/0,4

x=5