sashana1445 sashana1445

05-04-2020
Mathematics

contestada

3x - 2y = 17
2x + y = 30
*solve for both variables,

Respuesta :

itsH2SO4Vis itsH2SO4Vis

05-04-2020

Answer:

multiplying equation 2 by 2 and adding eq 1

3x-2y = 17

+4x+2y = 60 3

=

7x = 77

x = 77/7 = 11

then

y = (60-4x)/2 {from equation 3}

y = 60-44/2 = 16/2 = 8

then

x = 11

y = 8

hope it helps.....

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