Question

2x+3y = 5 and 3x + 2 y = 20 then find (x + y).​

Answer 1

Answer:

6

Step-by-step explanation:

by elimination method

6x+9y=15

6x+4y=40

by subtraction we get,

5y=-35

y=-7

now, by putting the value of y in 2x+3y=5 we get

2x-21=5

2x=26

x=13

so

x+y

is

13-7

6

Answer 2

Step-by-step explanation:

(2x+3y=5)×3

or,6x+9y=15....1

or,6x+4y=40........2

or,5y=35

or,y=7

x=(20-14)÷3

or,x=6÷3

or,x=2

x+y

=7+2=9