Question

If 3x-y=27, 3x+y=243 then find the x value

Answer 1

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Here is your answer ✓ ✓ ✓ ✓


3x - y = 27 ---------(1)


And,


3x + y = 243 ----------(2)



From equation (1) we get


3x - y = 27


3x = ( 27 + y)


x = ( 27 + y /3) ---------(3)


Putting the value of X in equation (2) , we get


3x + y = 243


3 × ( 27 + y /3) + y = 243



27 + y + y = 243


2y = 243 - 27


2y = 216


y = 216/2

y = 108


Putting the value of y in equation (3 ) , we get



x = ( 27 + y /3)


x = ( 27 + 108/3) = 135/3



x = 45


Hence,


X = 45 and Y = 108


☺ Hope it will help you ☺


$<marquee>$ BySaniyaAnwar


$<marquee>$#BeBrainly

Answer 2

3x=27+y
3x=243-y
equate both equation
27+y=243-y =108
y=108
so x= 3x-y =27
3x-108=27
x=45
Thank u