Question

Solve the following equations by elimination method:
217x + 131y = 913
131x + 217y = 827

Answer 1

Answer:

x=3,y=2

Step-by-step explanation:

adding the above equation

348x+348y=1740

or,

x+y=5.......1)

subtracting given equations

86x-86y=86

or,

x-y=1.......2)

from both equation 1 and 2 we have

x=3,y=4

as y cancel out each other we have

2x=6

x=3

and as x+y=5

then 3+y=5

y=2