Question

Ayuden
2X+5=9
2X-4=2
X-5/4=2
X+2/3=1
2X+3=5
x/5=3
10x-1=19
20-X=5
X+2=8
3X+6=24

Answer 1

Explicación paso a paso:

Ecuaciones:

a)

2x + 5= 9

2x = 9 - 5

2x = 4

x = 4/2

x = 2

b)

2x - 4= 2

2x = 2 + 4

2x = 6

x = 6/2

x = 3

c)

$\frac{x - 5}{4} = 2$

x - 5= 2 × 4

x - 5= 8

x = 8 + 5

x = 13

d)

$\frac{x + 2}{3} = 1$

x + 2= 1 × 3

x + 2= 3

x = 3 - 2

x = 1

e)

2x + 3= 5

2x = 5 - 3

2x = 2

x = 2/2

x = 1

f)

$\frac{x}{5} = 3$

x = 3 × 5

x = 15

g)

10x - 1= 19

10x = 19 + 1

10x = 20

x = 20/10

x = 2

h)

20 - x= 5

20 - 5= x

15 = x

i)

x + 2= 8

x = 8 - 2

x = 6

j)

3x + 6= 24

3x = 24 - 6

3x = 18

x = 18/3

x = 6