Answer :
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
-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