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3 years ago

Solve each system by substitution-5x+3y=228x-2y=-24

Mathematics

2 answers:

Ivan3 years ago

8 0

$x= 193/22y= 1410/11$

KonstantinChe [14]3 years ago

6 0

Answer: x= -2

y=4

Step-by-step explanation:

-5x+3y=22 I

8x-2y=-24 II

-------------------------

From second equation exp. y and return it in to first equation

y=(24+8x)/2

y=12+4x

-5x+3(12+4x)=22

-5x+36+12x=22

7x=-14

x= -2

y=12+4*(-2)

y=12-8

y=4

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hope this helps

sorry, I don't know how solve the 12th one.

thanks.

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3 years ago

Solve each system by substitution-5x+3y=228x-2y=-24​

Solve each system by substitution-5x+3y=228x-2y=-24