Question

solve the following systems of equations by elimination
4x - 5y = 9
- 6x + 5y = -11​

Answer 1

Answer:

Therefore, x = 1 and y = -1 .

Step-by-step explanation:

The steps are :

$4x - 5y = 9 - - - (1)$

$- 6x + 5y = - 11 - - - (2)$

$(1) + (2)$

$4x + ( - 6x) = 9 + ( - 11)$

$- 2x = - 2$

$x = 1$

$sub \: x = 1 \: into \: (2)$

$(2)⇒$

$- 6(1) + 5y = - 11$

$- 6 + 5y = - 11$

$5y = - 11 + 6$

$5y = -5$

$y = -1$

Answer 2

Answer:

I hope it work

Step-by-step explanation:

• 4x-5y=9
• -6x+5y=-11

adding both the equations

4x-5y=9

-6x+5y=-11

-2x+0y=-2

-2x=-2

Now divide both sides by -2

-2/-2 x= -2/-2

x=1

Now putt the value of x in one of above equation to get value of y

4(1)-5y=9

now solve this

-5y=9-4

-5y=5

divide -5 to both sides

y= -1

These are he required value of x and y

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