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3 years ago

5x+ 4y = -20 5x + 12y = -10 HELPPPPPP

Mathematics

1 answer:

Serggg [28]3 years ago

4 0

Answer:

We are to find x and y in this equation.

5x+4y= -20.

- 5x+12y= -10.

which is y=5/4 or 1.25.

then substitute y=1.25 into eqtn I.

5x+4(1.25)=-20.

5x+5= -20.

5x=-20-5.

5x= -25.

x= -5.

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