SOLUTION: solve by substitution y=2x+1 the second part is 3x+y=11

Question 1030415: solve by substitution y=2x+1 the second part is 3x+y=11
Found 2 solutions by ikleyn, fractalier:
Answer by ikleyn(52824) (Show Source): You can put this solution on YOUR website!
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It was solved at least 2 times in the last couple of days in this site. See

https://www.algebra.com/algebra/homework/Linear-equations/Linear-equations.faq.question.1030411.html

https://www.algebra.com/algebra/homework/Linear-equations/Linear-equations.faq.question.1030316.html

Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
Let us solve this one for you...
y=2x+1
3x+y=11
Plugging the first one into the second gives you
3x + (2x+1) = 11
3x + 2x + 1 = 11
5x + 1 = 11
Now sbtract one and divide by five and get
5x = 10
x = 2 so that
y = 2(2) + 1 = 4 + 1 = 5
(2, 5)
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