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Anna35 [415]
2 years ago
8

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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