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3/x-4=7/x solve for x

3/x-4=7/x solve for x
asked 98.9k views
5 votes
3/x-4=7/x

solve for x

asked
User Abukaj
by
7.9k points

1 Answer

3 votes

Answer:

x=7

Explanation:

3/x-4=7/x

Using cross products

3 * x = 7 (x-4)

Distribute

3x = 7x -28

Subtract 7x from each side

3x-7x = 7x-7x-28

-4x = -28

Divide each side by -4

-4x/-4 = -28/-4

x = 7

answered
User Karacas
by
8.6k points
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