507,440 views
1 vote
1 vote
Help please i beg you!!

Help please i beg you!!-example-1
User StephenKing
by
2.9k points

2 Answers

14 votes
14 votes

Answer:

y = 6

Explanation:

- x + 3y = 9 ( add x to both sides )

3y = 9 + x → (1)

y =
(2)/(3) x ( multiply both sides by 3 to clear the fraction )

3y = 2x → (2)

substitute 3y = 2x into (1)

2x = 9 + x ( subtract x from both sides )

x = 9

substitute x = 9 into (1)

3y = 9 + 9 = 18 ( divide both sides by 3 )

y = 6

User Grumme
by
2.7k points
14 votes
14 votes

Answer:

Step-by-step explanation:

-x + 3y =9

substitute y with 2/3x as mentioned in the question

so,

-x+3 (2/3x) = 9

cancelling 3 we get..

-x+2x=9

x=9

hope it helps

thanks

User Rajeev Kumar
by
2.8k points