rara61
rara61 rara61
  • 10-01-2017
  • Mathematics
contestada

I need to solve this system by substitution

I need to solve this system by substitution class=

Respuesta :

jvi jvi
  • 10-01-2017
first solve the first equation equal to y
y+6=2x
y=2x-6

then substitute the 2x-6 in for y in the second equation

6x-10(2x-6)=37

now solve for x

6x-20x+60=37
6x-20x=-23
-14x=-23
x=1.64

then put the x value back into the first equation

y=2(1.64)-6
y=3.28-6
y=-2.72
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