Math, asked by luckylohia006, 1 month ago

Solve graphically the following pair of linear equations 3x+y=9;3x+4y=18 . Hence, find the vertices of the triangle formed by the above two lines and the x-axis.

Answers

Answered by yujjiittadori

2

Answer:

x=2, y=3

Step-by-step explanation:

lets start with first equation

3x+y=9

y=9-3x

therefore ,

3x+4y=18

we got the value of y

3x+4(9-3x)=18

3x+36-12x=18

-9x+36=18

36-18=9x

18=9x

18/9=x. x=2

substituting the value of x in equation

3x+y=9. ,3(2)+y=9. 6+y=9

y=9-6

y=3

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