(4x+5y=0) (8x-15y=5) stimutanious equations

The solution is x = 0.25, y = -0.20.

or you can write it as (0.25, -0.20).

Step-by-step explanation:

4x + 5y = 0

8x - 15y = 5

Multiply the first equation by 3:

12x + 15y = 0     Now add this to the second equation:

20x = 5

x = 0.25.

Now substitute for x in equation 1:

4(0.25) + 5y = 0

1 + 5y = 0

5y = -1

y = -0.20.

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2

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