What is the result of adding these two equations? 5x−9y=1 −7x+2y=−5

defazajx 2021-02-13 Answered
What is the result of adding these two equations?
5x9y=1
7x+2y=5
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Expert Answer

Jayden-James Duffy
Answered 2021-02-14 Author has 91 answers
To add the two equations we just need to combine the like terms on each side of the equation.
Combining the like terms of 5x and −7x gives 5x+(7x)=(57)x=2x
Combining the like terms of −9y and 2y gives 9y+2y=(9+2)y=7y.
Combining the like terms of 1 and −5 on the right side of the equation gives 1+(5)=41+(5)=4.
Therefore:
5x9y=1
7x+2y=5
2x7y=4
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