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brownnikajeenbe brownnikajeenbe
  • 27-01-2017
  • Mathematics
Answered

Solve the system of linear equations by substitution 2x-y=6 x=y-1

Verified Answer :

xangelcat
xangelcat xangelcat
  • 27-01-2017


substitute x for y-1
2(y-1)-y=6 distribute
2y-2-y=6 subtract y in 2y
y-2=6 add 2 to get y by itself
y=8

Put y back into equation x=y-1
x=8-1
X=7

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