SOLUTION: Given 3x + y = 17 and x + 3y = -1. Find the value of 3x + 3y
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Question 626740: Given 3x + y = 17 and x + 3y = -1. Find the value of 3x + 3y
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
3x + y = 17
x + 3y = -1
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4x+4y = 16
4x+4y = 16
4(x+y) = 16
x+y = 16/4
x+y = 4
3(x+y) = 3*4
3x+3y = 12
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