Question

x by 5 + y by 2 = 5, x-y= 4

Answer 1

Answer:

x/5+y/2=5

2x+5y=50...(1)

x-y=4 ....(2)

equation (2)multyply by 2

2x-2y=8...(3)

Now, equation(1)and(3)substract

2x+5y=50

2x-2y=8

6y=42

y=7

put y in equation (2)

x-7=4

x=11

Answer 2

Answer:

Step-by-step explanation:

x/5 + y/2 =5 ............. (1)

x - y =4 ............. (2)

From (1)

2x + 5y/10 = 5

2x + 5y = 50 ............ (3)

From(2)

x=4 + y

Putting x = 4 +y in (3) we get

8 + 2y +5y = 50

7y = 42

y = 6

From (2)

x-6=4

x=10

x =10 & y=6

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