Respuesta :

Answer:

p=7

Step-by-step explanation:

5p-11=24 <---- multiply 4 and 6

5p=35<-------- add 11 to both sides

p=7<------------ divide 5 on both sides

answer: p=7

hope this helps! :)
equations:

-3p + 4q = 61
5p - 7q = -104

by multiplying the first equation by 5 and the second equation by 3 to get

-15p + 20q = 305
15p - 21q = -312

which gives us

-q = -7
q = 7

Plugging q into equation 1, we get

-15p + 140 = 305
-15p = 165
p = -11

Therefore, we have

7p + 11q = 7(-11) + 11(7) = 0