Question

MA PUTETI AJUTA

4x+9=3x+17
2x+9=7+x
2x+12=x-6
2x-5=-x+7
3x-1=x+9
4x-12=x+6​

Answer 1

Explicație pas cu pas:

Vezi poza

Answer 2

Răspuns:

Explicație pas cu pas:

a)4x+9=3x+17

Mutam termenii asemenea:

4x-3x=17-9

x=8

b)2x+9=7+x

2x-x=7-9

x=-2

c)2x+12=x-6

2x-x=-6-12

x=-18

d)2x-5=-x+7

2x+x=7+5

3x=12

x=12/3

x=4

e)3x-1=x+9

3x-x=9+1

2x=10

x=10/2

x=5

f)4x-12=x+6​

4x-x=6+12

3x=18

x=18/3

x=6