Question

3.
3х - у -15= 0 , +1+2=0
$3x - 4y - 15 = 0 \: y + x + 2 = 0$
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Answer 1

Answer:3 * 3х - у -15= 0 . + 1 + 2=0 = = 0

Step-by-step explanation:

Answer 2

Answer:

hey!

x= 1 , y= -3

Step-by-step explanation:

equations can be written as

3x-4y=15 ______(1)

and x+y= -2_____(2)

multiplying eqⁿ (2) by 4 we get,

4x+4y=-8 ______lets call this eqⁿ(3)

Adding (1)&(3)

y gets cancelled

hence 7x=7

x=1

in (2) x + y= -2

1 +y= -2

y= -3

hence x= 1 and y= -3

Hope this helps....

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