leo4687
27.09.2019 •
Mathematics
Solve the system of linear equations algebraically using the elimination method: 3x+y=19 and 4x+3y=26
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Ответ:
4x+3y=26
-9x-3y=-57
4x+3y=26
-5x=-31
x=6.2 substitute x into the equation:
3(6.2)+y=19
18.6+y=19
y=.4
(6.2,.40)
Ответ: