Question

do char wale samikaran
17x+10y=18;
15x-6y=30
​

Answer 1

Answer:

The value of x = 102/63

y = - 60/63

Step-by-step explanation:

Given that,

[17x + 10y = 18] × 3

[15x - 6y = 30] × 5

These equation will be written as :

51x + 30y = 54 _____(i)

75x - 30y = 150 _____(ii)

Adding equation (i) and (ii) we get :

126x = 204

x = 204/126 = 102/63

Now, From equation (i)

51 × 102/63 + 30y = 54

5202/63 + 30y = 54

30y = 54 - 5202/63

30y = - 1800/63

y = - 60/63