cameryn3 cameryn3
  • 31-01-2018
  • Mathematics
contestada

Y=1/2x +5
Y=-3/2x-7
Find x and y

Respuesta :

ktreyb
ktreyb ktreyb
  • 31-01-2018
I'm going to use the substitution method. 

If y = - 3/2 - 7, then:

1/2x + 5 = - 3/2x - 7

Combine like terms: 

4/2x = - 12. Mutiply both sides by 2/4 to get x = -12 (2/4)

Simplify to get:

x = - 6.

Plug - 6 back in for x in either equation.

Y = 1/2( - 6) + 5 which becomes Y = - 3 + 5.

X = - 6, Y = 2





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