Question

19.solve for x and y​

Answer 1

Step-by-step explanation:

Hi Dearie !

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Here,

\frac{x}{10} + \frac{y}{5} -1 = 0

10

x

+

5

y

−1=0

MBS By 10. we get,

x + 2y - 10 = 0

MBS by 2

2x + 4y - 20 = 0_____________________(1)

Also,

\frac{x}{8} + \frac{y}{6} - 15 = 0

8

x

+

6

y

−15=0

MBS By 24 , we get

3x + 4y - 360 = 0 ___________________(2)

Subtract Equation (1) From (2)

We get ,

3x + 4y - 360 = 0

2x + 4y - 20 = 0

x - 340 = 0

x = 340

Put value of x in equation (1)

we get ,

2 X 340 + 4y = 20

680 + 4y = 20

4y = 20 - 680

4y = -660

y = -165

Now, Put the values of x and y in

y =λx+5

-165 =λ(340) +5

-160 = 340λ

λ= -160/340

λ= -8/17