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

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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) About Me  (Show Source):
Answer by fractalier(6550) About Me  (Show Source):
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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)