Página:Tratado de Algebra Elementar.djvu/177

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220.

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3a;— y-a=17 5a._|_3,/_2z = 10 7a: -j- iy — 5a = 3.

x + ky — 2z = 3 as— 82/ + 12z = 21 2a;-|- 3z — 13.

304-

X J= 2/ 7 + 2 V a ~5 = as y + 2/ 9 z i 5 + a; 9~"

a , V , s 2 3 4 = 62 ® 1 'f l 2 — 47 3 4 ^ 5 a? , y , a 4 "r" 5 ^ 6 =38. x y 2z 3 5 7 — Sft — oo 5* , £ , z 4 e"^ = 76 ® y , 7® 2 5 40 147 — 5 •

3|/—1 6 z

a T* k

4 6 2 bx , 4z .5

T + ã^ + T

3as-f-l__1 , ,

7 " 14+6 ~21+3" 2a; — 3g/ -f- 3a — 10< = 121 x+7y — z — t = 583 3a;-f. 2s/ + 5s + 2< = 255 4a; —6«/ —22— 9< = 516.

aj+ y— z -f- 2í = 8 x— í/ + 2z-f í = 9 — x-\-<È.y-\- Z— < = 2

2íc+ 2/+ * + < = 11. 7m — 13z = 87 3ÍÍ + 14® = 57 10 y— 3a; = 11 2x — Hz =50. 7a; — 2z + 3m= 17 íy — 2z+ < = 11 5«/ —3J= —2w = 8 3< + 2m= 9 3z + 8m == 33

as = 4 y=0 a = 5.

as = 1 y = 2 2=3.

« = 315 2/=630 Í = 945.

a; = 24 2/ = 60 z = 120.

aj= 12 2/= 30 a = 168.

íc = 2 ?/ = 3 2 = 1.

^ = 100 {, = 60

£ = —13

< = — 50.

as = 1 y= 2 z = 3

< = 4. a; = 3 «, = 2

z = — 4 M = 5. • as = 2 «/ = 4 z = 3 <=1 M = 3.