trinip2010
trinip2010 trinip2010
  • 02-10-2016
  • Mathematics
contestada

how to solve equations
3y-2x=11
y+2x=9




Respuesta :

princegn
princegn princegn
  • 02-10-2016
3y-2x=11
y+2x=9
just plus them
4y = 20
y = 5
put y = 5 in y+2x=9
5 + 2x = 9
2x = 9 - 5
2x = 4
x = 2
thus x = 2
 y = 5
Answer Link
Wexler
Wexler Wexler
  • 02-10-2016
1. y=9 and x=8
2. y=-29 and x=20
Answer Link

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