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Class 10 Mathematics Pair of Linear Equations in Two Variables Graphical method of finding solutions.Expert

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If the lines (8x+ay=40) and (24x+18y=120) are coincident, what is the value of (a)?

Answer and explanation

Correct answer: (6)

The second equation is (3) times the first, so (3a=18) and (a=6). Include the constant term in ratio checking.

Related tags

Graphical Method Parameter Coincident Lines Ratio Test Graphical Method Of Finding Solutions.Graphical Method Of Finding Solutions Pair Of Linear Equations In Two Variables Mathematics

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