2z+y=40
y+3x=110
z+2x=70
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z=10
y=20
x=30
2(10) + 20 =40
20+3(30)=110
y=20
x=30
2(10) + 20 =40
20+3(30)=110
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y+2 z = 40
3 x+y = 110
2 x+z = 70
y+2 z = 40
3 x+y = 110
2 x+z = 70
y = 40-2 z
3 x+y = 110
2 x+z = 70
y = 40-2 z
40+3 x-2 z = 110
2 x+z = 70
y = 40-2 z
40+3 x-2 z = 110
2 x+z = 70
y = 40-2 z
40+3 x-2 z = 110
z = 70-2 x
y = 40-2 z
40-2 (70-2 x)+3 x = 110
z = 70-2 x
40-2 (70-2 x)+3 x = (4 x-140)+3 x+40 = 7 x-100:
y = 40-2 z
7 x-100 = 110
z = 70-2 x
y = 40-2 z
7 x-100 = 110
z = 70-2 x
y = 40-2 z
7 x = 210
z = 70-2 x
y = 40-2 z
x = 30
z = 70-2 x
y = 40-2 z
x = 30
z = 10
y = 20
x = 30
z = 10
x = 30
y = 20
z = 10
saludos
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