-2(2x+3)+6x-9. (1 -4x+-6+6x-9
2x+-15
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1/2+2/5t-1=1/5t+t (2
-1/2+2/5t=1.2t
-2\5t= -2/5t
-2/1* -1/2=.8t*-2/1
t=-1.6
