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2x-3y=-1 3x-4y=-1 giải hpt
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1 vote
2x-3y=-1
3x-4y=-1
giải hpt

User Siddharth Lele
by
3.3k points

1 Answer

3 votes

Answer:

x = 1

Y = 1

Explanation:

A. 3(2x-3y= - 1)

6x-9y=- 3

B. -2(3x-4y= - 1)

- 6x+8y=2

Add both equations:

(6x-9y= - 3) + (- 6x+8y=2)

-y= - 1

3x - 4(1) = - 1

3x-4= - 1

3x = 4 - 1

= 3/3 = 1

User Suresh Parmar
by
2.9k points
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