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प्रश्न
If (4,-3) is a point on line 5x +8y = c, find the value of c.
योग
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उत्तर
5x +8y = c
Given (4,-3)
by substituting the values of x and y in the equation
5(4) + 8(-3) = c
20 - 24 = c
c = -4
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