anonymous
  • anonymous
a − 3b = 4 a = b − 2 What is the solution to the set of equations in the form (a, b)?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
(−2, −2) (−3, −1) (−9, −7) (−5, −3)
pooja195
  • pooja195
Use the substituion method plug in equation 2 into equation one \[\huge~\rm~ b-2 − 3b = 4\]
pooja195
  • pooja195
Now solve for b

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anonymous
  • anonymous
wait how do I solve for b
pooja195
  • pooja195
Start by combining like terms
pooja195
  • pooja195
b−2−3b=4 -3+1=?
anonymous
  • anonymous
-2
pooja195
  • pooja195
Good now we have -2b now we add 2 to both sides 4+2=?
anonymous
  • anonymous
6
pooja195
  • pooja195
So now we have -2b=6 Whats 6/-2 ?
anonymous
  • anonymous
8
pooja195
  • pooja195
?
anonymous
  • anonymous
no wait u divide those right?
pooja195
  • pooja195
Yes
pooja195
  • pooja195
/=divide
anonymous
  • anonymous
so than it would be -3
pooja195
  • pooja195
Yes now we plug -3 in place of b in equation 2 a=-3-2 -3-2=?
anonymous
  • anonymous
-5
pooja195
  • pooja195
good so we have b=-3 a=-5 whats the answer?
anonymous
  • anonymous
it would be D
pooja195
  • pooja195
Good job! :D
anonymous
  • anonymous
thx for the help i'll fan and metal now ^_^
pooja195
  • pooja195
thanks ^.^

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