Question

if 10x+y=42 and x+10y=24,then find the value of x+y is =​

Answer 1

Step-by-step explanation:

Given =》

Two Teams

1) 10x+y=42

2) x+10y=24

To Find=》

Value of x and y

solution =》

10x+y=42-----------(1)

x+10y=24-----------(2)

Multiply eq2 by 10

10( x+10y=24)

10x+100y =240--------------(3)

Subtract eq 3 from eq1

10x + y = 42

10x + 100y = 240

- - -

——————————

-99y = - 198

y= -198/-99

y=2

Putting the value of y in eq 1

10x+y =42

10x+2=42

10x=42-2

10x=40

x=40/10

x=4

So the value of x =4 and y=2