payton7 payton7

02-05-2016
Mathematics

contestada

3x + y = 17 and 4x - y = 18

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MalgosiaaaK MalgosiaaaK

03-05-2016

I'm not sure if this is what you're asking for but here goes...
3x + y = 17
+ 4x - y = 18
———————
7x = 35
x = 5

sub x = 5 into eq. 1
3x + y = 17
(3 × 5) + y = 17
15 + y = 17
subtract 15 from both sides of the equation.
y = 2

Final Answer - ( 5 , 2 )
Hope this helped :)

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