Answer:
j = 9, b = 5
Step-by-step explanation:
The first equation must be
[tex]j+b=14[/tex]
Multiplying by -130 result
[tex]-130j-130b=-1820[/tex]
we add the equations to eliminate the variable "j"
[tex]20b=100[/tex]
[tex]b=100/20=5[/tex]
Now we calculate "j"
[tex]j+b=14[/tex]
[tex]j=14-b=14-5=9[/tex]
Hope this helps
