Question

If x+y=25 and y-x=10 then find 2x+3y​

Answer 1

Answer:

2x=35,3y=45/2

Step-by-step explanation:

x+y=25

x-y=10

2x=35(ans)

then 35/2=x

when solved for y we get

y=15/2

3y=15/2*3

now.....

2x+3y=115/2

=57.2

Answer 2

As we know X plus Y is equal to 25 and Y minus X is equal to 10 we can write Y minus X is equal to 10 as Y is equal to 10+ X now replacing its value in first equation Gives us X +10+ X is equal to 25



2x=25-10
2x=15
X=7.5

Y=10+7.5
Y=17.5



2(7.5)+3(17.5)
=15+52.5
=67.5