SOLUTION: Solve and check using the substitution method 3x+y=5 and 3x-2y=8

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Question 438243: Solve and check using the substitution method 3x+y=5 and 3x-2y=8
Answer by Gogonati(855) About Me  (Show Source):
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Solve the system: system%283x%2By=5%2C+3x-2y=8%29, using the substitution method.
let's isolate y in the first equation: y=5-3x, substitute this value of y
in the second equation: 3x-2%285-3x%29=8, now we solve this equation,
3x-10%2B6x=8 => 9x=18 => x=2, substitute this value of x in to
y=5-3x and have y=5-3%2A2 => y=-1.
Answer: The solution of our system is the point (2, -1).