Question

What is the answer to this question using elimination method finding the value of x and y in x+y=6 and x+3y=2

Answer 1

Step-by-step explanation:

x+3y= 2

x+y =6

2y= -4

we will subtract them as the sign is same

if sign is different we will add

y=-4/2

y= -2

now substitute in equation 2

x+y=6

x+(-2)=6

x-2=6

x=6+2

x=8

therefore X,Y = (8,-2)

감사

Answer 2

Step-by-step explanation:

Given: X+Y=6

X+3Y=2

to find: value of X and Y.

solution,

X+Y=6.........(1)

X+3Y=2...........(2)

substracting equation (1) and (2).

X+Y=6

X+3Y=2

(-)(-)=(-)

................

-2Y= 4

Y= 4/(-2)

Y= -2

put the value of Y=-2 in equation (1) we get,

X+Y=6

X-2=6

X=6+2

X=8

the value of X and Y is 8 and -2.