deannaellis
deannaellis deannaellis
  • 26-09-2017
  • Mathematics
contestada

7x+2y=-19
and

-x+2y=21

Using transitive property

Respuesta :

goldpearl240
goldpearl240 goldpearl240
  • 26-09-2017
7×+2y=-19
MOVE VARIABLE TO THE RIGHT
7×=-19-2y
DIVIDE BOTH SIDES BY 7

ANSWER IS : X= -19-2 y
in the final answer put 7 under 19 like a fraction and put 7 under 2 like a fraction I couldn't write it like a fraction

-×+2y=21
move VARIABLE to the right
-×=21-2y
change the signs
ANSWER: ×= -21+21y

your welcome
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