Question

3x-2y=14. 4x+3y=-4 me ajudem por favor

Answer 1

Olá!

Vamos Achar o X:

$\left \{ {{3x-2y=14} \atop {4x+3y=-4}} \right. \\\\\left \{ {{(3x-2y=14)*(3)} \atop {(4x+3y=-4 )*(2)}} \right. \\\\\left \{ {{9x-6y=42} \atop {8x+6y=-8}} \right.\\\\17x=34\\\\x=34/17\\\\ {x=2}$

Tendo o X, vamos achar o Y:

$3x-2y=14\\\\3*2-2y=14\\\\6-2y=14\\\\-2y=14-6\\\\-2y=8\\\\y=8/-2\\\\y=-4$

Agora Temos que x = 2 e y = -4

Answer 2

\begin{gathered}\left \{ {{3x-2y=14} \atop {4x+3y=-4}} \right. \\\\\left \{ {{(3x-2y=14)*(3)} \atop {(4x+3y=-4 )*(2)}} \right. \\\\\left \{ {{9x-6y=42} \atop {8x+6y=-8}} \right.\\\\17x=34\\\\x=34/17\\\\ {x=2}\end{gathered}

{

4x+3y=−4

3x−2y=14

{

(4x+3y=−4)∗(2)

(3x−2y=14)∗(3)

{

8x+6y=−8

9x−6y=42

17x=34

x=34/17

3x−2y=14

3∗2−2y=14

6−2y=14

−2y=14−6

−2y=8

y=8/−2

y=−4

x=2