Question

2x+y= 10
3x+4y=25 substitution
method​

Answer 1

Answer:

Good night guys

Explanation:

My name is sheela

Answer 2

Answer:2x+y=10-----------> (i)

3x+4y=25----------------------(ii)

from (i) 2x+y=10

y=10-2x------------->(iii)

now,

         substitute  the value of y from (iii) in equation (ii)

3x+4*(10-2x)=25

3x+40-8x=25

-5x+40=25

-5x=25-40

-5x=-15

x=-15/-5

x=3

now put x=3 in equation (iii)

y=10-2*3

y=10-6

y=4