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What is the intersection point of (2x+y=7) and (x-y=2)?

Answer and explanation

Correct answer: (3,1)

From \(x-y=2\), we get \(y=x-2\). Substituting this in \(2x+y=7\) gives \(2x+x-2=7\), so \(3x=9\) and \(x=3\). Then \(y=3-2=1\). Therefore, the intersection point is \((3,1)\). Option \((4,1)\) does not satisfy the first equation because \(2(4)+1=9\), not 7. Exam tip: Verify an intersection point by substituting it into both equations.

Related tags

Linear InequalitiesLinear EquationsIntersection PointGraphical SolutionTwo VariablesClass 11Graphical Solution Of Linear Inequalities In Two VariablesMathematics

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