substitution method for y=3x-1 and 2x-3y=10

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1 Answer

line 1: y=3x-1

line 2: 2x -3y=10

line 2: 2x -3(3x-1)=10

2x -9x+3=10

-7x=10-3=7

x=-1

y=3x-1=-4
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