Question

Como posso resolver estas equações?

Q= -5p+60
Q= 5p-20

Answer 1

iuse o metodo da soma:
q =-5p+60
q = 5p-20    
2q= 40
q=40/20
q= 2

ok
avalie-me agora 

Answer 2

S>0                                              S>0

-20+5p >0                                 60-5p>0

5p>20                                      -5p>-60

p>20÷5                                    p> 60÷5

P>  4                                          P> 12