Math, asked by stefanvries25, 1 year ago

solve for p and q simultaneously if:
6q + 7p = 3
2q + p = 5

Answers

Answered by vipulraj615
2
6q+7p=3 x2
2q+p=5 x6

12q+14p=6......(1)
12q+6p=30.....(2)
subtracting eq(2) from eq( 1 )
0+8p =-24
p=-3(put the value of p=-3 in eq (1)
we get
q=4

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Answered by gangwarakash999
1
Hey mate :

Given :

6q + 7p = 3.........(1)

2q + p = 5............(2)

Then, p and q = ?

Now,

Eq..........(2) × 3 - Eq..........(1)

6q + 3p - 6q - 7p = 15 - 3

- 4p = 12

p = -3........(3)

From Eq.........(1) and Eq..........(3)

6q + (-21) = 3

6q = 3 +21_

6q = 24

q = 4


so,

p = -3.

q = 4.




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