Answers

2014-10-25T02:28:33+08:00
X+2=0------(1)    3x-2(x -a)=8--------(2 ) from eqn(1)    x=-2 equn 2 can be written as3x-2x+2a =8 iex+2a=8 ----(3) sub the value of x in equn 3 we get it as-2+2a=8    or2a=8+2=10 or   a =10/2 =5
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