AutumnGriffin
AutumnGriffin
20-01-2017
Mathematics
contestada
What is
6x-2y=18
6x-7y=3
Respuesta :
bcalle
bcalle
20-01-2017
6x - 2y = 18
-(6x - 7y = 3) subtract from the first equation
5y = 15
y = 3
Plug 3 in to the first equation to solve for x.
6x -2(3) = 18
6x - 6 = 18
add 6 to both sides
6x -6 + 6 = 18 + 6
6x = 24
x = 4
(4,3)
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