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Question

the value of $x$ , when $y = - 5$ .

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Solution

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To draw the graph for the given linear equation, we need to first plot the points which lie on it. Join them to get a straight line.
Given equation is $\frac{x}{4} + \frac{y}{5} = 1 \Rightarrow y = - \frac{5}{4} x + 5$
Substitute different values of $x$ in the equation and calculate to get corresponding values of $y$ .
Plot these points on the graph paper and join them using a straight line.
On observing the graph, we find that $x = 8$ , $y = - 5$ .

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