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Solve the following system y= x+ 3 3x +y = 19

Solve the following system y= x+ 3 3x +y = 19
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5 votes
Solve the following system y= x+ 3 3x +y = 19

User CharybdeBE
by
8.2k points

2 Answers

6 votes

Answer:

4,7

Explanation:

Took the exam and got it corrrrrrect

User Danben
by
9.4k points
6 votes
3x+y=19

y=19-3x and y=x+3, at a solution both x and y are equal so we can say y=y:

19-3x=x+3

19-4x=3

-4x=-16

x=4, and since y=x+3

y=7 so the solution is the point:

(4,7)
User Ashley Briscoe
by
8.3k points
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