a-2b=2.........(1)
a+b=2(b+3)
a+b=2b+6
a-b=6.......(2)
a-2b= 2
a-b= 6
Eliminate y
multiply (1)by -1
Multiply (2) by 2
-a+2b=-2
2a-2b=12
Add the two equations
a = 10
plug value of a in (1)
1a +-2b=2
10+-2b=2
-2b =2
-2b =-8
b=4.00
Hope this helped:)
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