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Mathematics
Kristian Hunter
5 November, 00:06
Y=4x. 3x-y=1 how to get the y value
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Helena
5 November, 01:22
0
Since y=4x
substitute 4x into the second equation
3x-4x=1
-x=1
x=-1
if x=-1, substitute x=-1 in the equ 1
y=4x
y=4 (-1)
y=-4
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