If (2x+2y=16) and (x-y=2), which is the correct solution?
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Answer and explanation
Correct answer: (x=5,\ y=3)
The first equation becomes (x+y=8); adding it with (x-y=2) gives (2x=10). Simplifying an equation first makes solving easier.
Frequently asked questions
What is the correct answer to this question?
(x=5,\ y=3)
Why is this the correct answer?
The first equation becomes (x+y=8); adding it with (x-y=2) gives (2x=10). Simplifying an equation first makes solving easier.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Pair of Linear Equations in Two Variables. Topic: Algebraic methods: Substitution method and Elimination method..
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