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1 vote
Px + qy = r
2px - qy = 2r
When solving this system of equations, x =

User Svarog
by
6.7k points

2 Answers

0 votes
You just add the equations:
px + qy = r
2px - qy = 2r
3px = 3r
divide by 3
px = r
divide by p
x = (r)/(p)
User Shwetabh Shekhar
by
6.8k points
5 votes
px + qy = r
2px - qy = 2r
----------------add
3px = 3r

x = 3r/3p
x = r/p
User Kamesh Jungi
by
7.2k points