vanyahoff vanyahoff

07-04-2019
Mathematics

contestada

Solve the system of equations: 7x−3y=13, x−2y=5

Respuesta :

evgeniylevi evgeniylevi

08-04-2019

Answer:

{1;-2}

Step-by-step explanation:

[tex]...=\left \{ {{x=2y+5} \atop {7x-3y=13}} \right. =\left \{ {{x=2y+5} \atop {14y+35-3y=13}} \right.=\left \{ {{x=2y+5} \atop {y=-2}} \right.=\left \{ {{x=1} \atop {y=-2}} \right.[/tex]

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1 - 2x + 3y for x = -2 and y= -5