dnlaunza12 dnlaunza12
  • 13-02-2017
  • Mathematics
contestada

how to do substitution

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vegaxie000
vegaxie000 vegaxie000
  • 13-02-2017
you solve for one variable like 
y-5x=2
"y=5x+2"

9x+3y=58
and you plug it in into the other equation
9x+3(5x+2)=58

You solve for x and then plug in your answer for x into the other equation
*let's imagine x=8*
then:
y-5(8)=2
and solve for y 
:D 


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