Solve for x and y 3x+y = 5 x-2y=4 Solve for x and y 3x+y = 5 x-2y=4

Expert Answers

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3x + y = 5..........(1)

x - 2y = 4 ..........(2)

First let us use the elimination method.

Let us multiply (1) by 2 and add to (2):

==> 7x = 14

==> x = 2

Now using the substitution method substitute x velue in (2)

x-2y = 4

2 - 2y = 4

2-4 = 2y

-2 = 2y

==> y= -1

The solution is:

x= 2   and y= -1

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