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2x + 3y = 11 and 2x - 4y = -24 and hence find the value of 'm' for which y = mx + 3
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Answered by
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2x + 3y = 11 and 2x - 4y = -24 and hence find the value of 'm' for which y = mx + 3
-------(1)
-------(2)
From equation (2) We have ;
----------(3)
Substitute eq(3) in eq(1)
Substitute y = 5 in eq(3)
The solution is y = 5 and x = - 2
So the answer for the solution y = mx + 3 Is
m = - 1
Answered by
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Step-by-step explanation:
Using elimination method
2x + 3y = 11
-2x - 4y = -24
-------------------
7y = 35
y = 35/7
y = 5
when y = 5
2x+3(5)=11
2x=11-15
x = -4/2
x = -2
when x = -2 and y = 5
y = mx + 3
5 = m (-2) + 3
5-3 = -2m
2 = -2m
2/-2 = m
-1 = m
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