2 years ago

Can someone please help ?

Mathematics

1 answer:

den301095 [7]2 years ago

4 0

5x+4y=-2

3x+4y=10

Make one with negative coefficient to find first what is x then solve for y .

-1(5x+4y)= -1 (-2)

3x+4y=10

-5x-4y=2

+ 3x+4y=10

_________

-x = 12

Divide both sides by -2

-2x/-2=12/-2

X= -6

Now substitute your x into one of the equations to find y .

-5x-4y=2

-5(-6)+4y=2

30+4y=2

Subtract 30 both sides

-4y= 2-30

Divide both sides by -4

Y= -28/-4

Y= 7

Your answer is in point form (-6,7) meaning x is -6 and y is 7.

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