3 years ago

21. What is the value of x if 5:(3x+2) = 7:(5x-2).A. 6B. 5C.7.

Mathematics

1 answer:

KatRina [158]3 years ago

6 0

Answer:

5/(3x+2) = 7/(5x-2)

<=>5*(5x-2) = 7*(3x+2) (x is not equal to -3/2 or 2/5)

<=> 25x -10 = 21x +14 (x is not equal to -3/2 or 2/5)

<=> 4x = 24 (x is not equal to -3/2 or 2/5)

<=> x = 6 (valid)

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21. What is the value of x if 5:(3x+2) = 7:(5x-2).A. 6B. 5C.7.​

21. What is the value of x if 5:(3x+2) = 7:(5x-2).A. 6B. 5C.7.