Elimination using addition and subtraction

3x+4y=19

3x+6y=33

Solve please
in Algebra 1 Answers by Level 1 User (620 points)

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1 Answer

??????????? "addishun" & "substrakshun" ?????????????

???????? yu meen +- ?????????????

line 1:3x+4y=19

line2: 3x+6y=33

line1 -line2...(3x-3x) + (4y-6y) =(19-33)

-2y=-14

y=+7

from line1...3x=19-4y=19-28=-9....x=-3
by

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