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Answered by
1
Step-by-step explanation:
5-x/7-x=2+x/4+x
=5-2/7-4=x+x/x+x
=3/3=2x/2x
=1×2x=2x
=2x=2x
=x=2x/2
=x=x
Hope it helps.
Answered by
1
Answer:
(5 - x )/(7 -x) = (2 +x)/(4+x)
= (5 -x)(4+x) = (2 +x)(7-x)
= 20 +5x -4x -x² = 14 -2x +7x -x²
= x + 20 = 5x + 14
= 6 = 4x
= x = 3/2
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