Question

ex de mai jos va rogv ​

Answer 1

Răspuns:

Explicație pas cu pas:

a)

x + 6 = 14 - x

x + x = 14 - 6

2x = 8

x = 8 : 2 = 4

b)

2x + 5 = 17 - x

2x + x = 17 - 5

3x = 12

x = 12 : 3 = 4

c)

x - 8 = 2x + 10

2x - x = -8 - 10

x = -18

d)

-x - 4 = x + 2

x + x = -4 - 2

2x = -6

x = -6 : 2 = -3

Answer 2

Răspuns:

a.

x+6=14-x

x+x=14-6

2x=8

x=8:2 =>x=4

b.

2x+5=17-x

2x+x=17-5

3x=12

x=12:3 =>x=4

c.

x-8=2x+10

2x-x=-8-10

x=-18

d.

-x-4=x+2

x+x=-4-2

2x=-6

x=-6:2=>x=-3