Resolva o sistema abaixo usando a regra de cramer.x+y =107 y+Z = 74x+z = 91.... Pergunta de ideia deLarinhaSousa

May 2020 1 110 Report

Resolva o sistema abaixo usando a regra de cramer.
x+y =107
y+Z = 74
x+z = 91

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khaine X+y=107
y+z=74
x=z=91

x+y+0z=107
0x+y+z=74
x+0y+z=91

=/1 1 0
/0 1 1 =1+1+0-0-0-0=2
/1 0 1

x=/107 1 0
/ 74 1 1 =107+91+0-0-74-0=124
/ 91 0 1

y=/1 107 0
/0 74 1=74+107+0-0-0-91=90
/1 91 1

z=/1 1 107
/ 0 1 74=91+74+0-107-0-0=58
/1 0 91
x=124÷2=62
y=90÷2=45
z=58÷2=29

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