bradjeff939 bradjeff939

10-03-2022
Mathematics

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80 POINTS -Pre Calc Questions

80 POINTS Pre Calc Questions class=

Respuesta :

rlinga336 rlinga336

10-03-2022

Answer:

x+y=30

2x+3y=80

multiplying equation one by -3 and add equation

-3x -3y=-90

2x +3y=80

2(10)+20(3)=80

80=80

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