yocelincelestino101
yocelincelestino101 yocelincelestino101
  • 02-06-2021
  • Mathematics
contestada

Is this right and can someone show me the explanation plz?and how to do the problem I have to show my work

Is this right and can someone show me the explanation plzand how to do the problem I have to show my work class=

Respuesta :

kkozume27
kkozume27 kkozume27
  • 02-06-2021

Answer:

yes it is.

x = 4 and y = -3

Step-by-step explanation:

Solve simultaneously using elimination method:

equation 1 - equation 2

3x + y = 9 equation 1

-2x + y = 5 equation 2

_________

x = 4

plug 4 into any of the 2 equations and solve for y.

3(4) + y = 9

12 + y = 9

12-12 + y = 9-12

y = -3

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