14. If x = 3k +5 and y = 4k - 5, then find the value of h
on the basis of linear equation 5x - 4y = 7.
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Answer:
ok
Explanation:
x=3k+5
y=4k-5
5x-4y=7
5×(3k+5)-4(4k-5)=7
15k+25-16k+20=7
-k+45=7
-k=7-45
-k=-38
minus on both side gets cancelled out
k=38
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