Question

Ofer 120 puncte !Urgent

Answer 1

Răspuns:

a)x+x+3+x+1=34

3x=30

x=10

x+1=11

x+3=13

b)2(x+2+x)=16

4x+4=16

4x=12

x=3

x+2=5

c)x+x+20=90

2x=70

x=35

x+20=55