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13 votes
13 votes
Tìm x,y nguyên dương 5x – xy + 3y = 22.

User Jacob Garby
by
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1 Answer

12 votes
12 votes

Answer:

x = 22-3y/5-y

y=-22-5x/x-3

Explanation:

Solve for x:

1) Subtract 3y from both sides.

5x - xy = 22 - 3y

2) Factor out the common term x.

x(5 - y) = 22 - 3y

3) Divide both sides by 5 - y.

x = 22-3y/5-y

Solve for y:

1) Subtract 5x from both sides.

=xy + 3y = 22 - 5x

2) Factor out the common term y.

- y=(x-3)=22-5x

3) Divide both sides by x-3.

-y=22-5x/x-3

4) Multiply both sides by -1.

y=-22-5x/x-3

User Mihaela Romanca
by
3.2k points