Question

Ajutați-mă dau coroana

Answer 1

Răspuns:

a)...=4x+4-3=17

=4x=17-4+3

=4x=16

=x=4

b)7(2x+3)-15=34

14x+21-15=34

14x=34-21+15

14x=28

x=2

c)... 18x+12-11=73

18x=73-12+11

18x=72

x=4

d)..10x-15+1=26

10x=26+15-1

10x=40

x=4

e)7+9x+18=-34

7+34+18=9x

59=9x

x= -59/9

f)3x+6=-22

3x=-22-6

3x=-28

x=-28/3

g)2x+4-8=-1

2x=-1-4+8

2x=3

x=3/2

h)4+2x+6=-16

2x=-16-4-6

2x=-26

x=-13