Question

find the value of x and y by elimination method 3x+4y=10. 2x-2y=2​

Answer 1

Answer:

Here's your answer

3x +4y =10.... (I)

2x -2y =2.... (ii)

Multiplying equation (ii) by 3 and (I) by 2

So...

#6x+8y=20

#6x-6y=6

.....+.......-..

14y = 14

#y=1

So for x putting value of y in equation (ii)

6x-6y=6

6x-6=6

6x=12

#x=2

#x = 2 and y= 1

Hope it helps ✌

Answer 2

Answer:

x=2

y=1

Step-by-step explanation:

3x+4y=10              --------1

2x-2y=2                --------2

Multiply eq. 2 by 2

we'll get the new equations as-

 3x+4y=10          

+4x-4y=4  

7x     =14                           (Adding both the equations)

x=14/7

x=2

putting this value of x in eq. 1 we get,

3(2)+4y=10

4y=10-6

y=1

therefore we get the values of x and y as 2 and 1 respectively.

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