Respuesta :


Answer:

(2,−1)

Explanation:

The quickest way is to use elimination

3x+4y=2

                 +

2x−4y=8

−−−−−

5x      =10

⇒   x=2

Now substitute into one of the original eqns.

3×2+4y=2

6+4y=2

4y=−4⇒y=−1

check in other eqn.

2x−4y=8

2×2−(4×−1)=4−−4=4+4=8√

solns (2,−1)

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