SOLUTION: a=b+3 a=-4b-2

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Question 548217: a=b+3
a=-4b-2
Answer by mathie123(224) About Me  (Show Source):
You can put this solution on YOUR website!
a=b%2B3
a=-4b-2
We need to find a value for a and b that makes both these statements true.
We can set a=a (substitution method) and get
b%2B3=-4b-2
b%2B3-3%2B4b=-4b-2-3%2B4b
b%2B4b=-2-3
5b=-5
5b%2F5=-5%2F5
b=-1
And now substituting this value of b into either of the original equations (I will put it into a=b+3, but you will end up with the same thing which every route you take).
a=b%2B3
a=-1%2B3
a=2