3 years ago

© Solve the simultaneous equations -3x + y= – 8 3x + 2y = – 13 X =? y =?

Mathematics

1 answer:

DENIUS [597]3 years ago

5 0

Answer:

x=1/3

y=-7

Step-by-step explanation:

using the elimination method, you can add both equations vertically, to eliminate the x

-3x+y=-8

3x+2y=-13

3y=-21

y=-7

we then fix the value of y into the first equation

-3x+y=-8

-3x-7=-8

-3x=-8+7

-3x=-1

x=1/3

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