Step-by-step explanation:
Let use advanced thinking.
Consider the equation,
[tex]3x + 5y = 9[/tex]
We can find it x and y intercepts.
When y=0
[tex]3x = 9[/tex]
[tex]x = 3[/tex]
and when x=0
[tex]5y = 9[/tex]
[tex]15x + 25y = 45[/tex]
The second equation is multiplied by 5 in everything in the first equation, so the constant is 45
Now, let prove the x and y intercepts are equal
[tex]15x = 45[/tex]
[tex]x = 3[/tex]
[tex]25y = 45[/tex]
[tex]y = \frac{45}{25} = 1.8[/tex]
