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3 years ago

5

У=x+5 3x+y=25 substitution

1 answer:

gavmur [86]3 years ago

5 0

Answer:

(5,10)

Step-by-step explanation:

So we have the system of equations:

$y=x+5\\3x+y=25$

To solve, we can use substitution.

Substitute the first equation into the second:

$3x+y=25\\3x+(x+5)=25$

Combine like terms:

$4x+5=25$

Subtract 5:

$4x=20$

Divide by 4:

$x=5$

Now, substitute this into the first equation:

$y=x+5\\y=5+5$

Add:

$y=10$

So, our answer is (5,10)

And we are done :)

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