Question

Find the solution of the system of equations.- 3x + 10y = 173x + 7y = 17​

Answer 1

Answer:

$x=1,y=2$

Step-by-step explanation:

Given :

$- 3x + 10y = 17$           equation 1

$3x + 7y = 17$               equation 2

Adding the equation 1 and equation 2

                      $- 3x + 10y+(3x+7y) = 17+17\\\\-3x+10y+3x+7y=34\\\\10y+7y=34\\\\17y=34\\\\y=\frac{34}{17}\\\\ y=2$

Putting the value of 'y' in equation 2

                      $3x + 7y =17\\3x + 7(2) = 17\\3x+14=17\\3x=17-14\\3x=3\\x=1$

So, the value are $x=1,y=2$

Answer 2

Answer:

x=1, y=2. (1, 2).

Step-by-step explanation:

-3x+10y=17

3x+7y=17

---------------

17y=34

y=34/17

y=2

3x+7(2)=17

3x+14=17

3x=17-14

3x=3

x=3/3

x=1