Mathematics
GrahamLiversedge
18

What is the solution to the system of equations x-y=-1 and x-3y = 13

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(1) Answers
Beidbshdjnd

Using process of substitution.  x-y+y=-1+y x=-1+y Now substitute into x-3y=13 -1+y-3y=13 -1+1-2y=13+1 -2y=14 y=-7 Therefore, x= -8

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