Question

Solve by Substitution method ; 2x+3y=5 and x-y=0. *

Answer 1

Answer:

x=1,y=1

Explanation:

2x+3y=5-----1

x-y=0----------2

from 2

x=y------3

substitute 3 in 1

so,

2x+3x=5

5x=5

x=1

from 3

x=y

y=1

x=1,y=1

Hope it helps u....

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Answer 2

We have,

2x+3y=9 ……. (1)

3x+4y=5 …… (2)

Now,

y=

3

9−2x

On putting the value of y, in equation (2), we get

3x+4(

3

9−2x

)=5

3x+

3

36−8x

=5

9x+36−8x=15

x=15−36

Now, put the value of x in equation (1), we get

y=

3

9−2(−21)

y=

3

9+42

y=

3

51

=17

Hence, this is the answer.