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19-02-2019
Mathematics

contestada

What is the solution to the following system of equations?

x+y=5
x-y=1
step by step

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SuiteLyfeOfKy SuiteLyfeOfKy

19-02-2019

x+y=5
-x -x

Equals:

y=-x+5

Now you have:

y=-x+5
x-y=1

Insert -x+5 into y

x-x+5=1

Combine like terms

2x+5=1

Subtract 5.

2x=-4

Divide 2.

Answer: x=-2

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