mosidat mosidat

09-11-2017
Mathematics

contestada

x-y+z=6, 2y+z=12, z=2

Respuesta :

dannielle dannielle

09-11-2017

for z=2⇒ 2y+2=12
2y=12-2
2y=10
y=10:2
y=5
x - y+z=6
x - 5 + 2=6
x -3 =6
x=6+3
x=9

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