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11x-13=2-x
12x=15
X=5/4
B) x/3-2=x+3/6
2x-12=6x+3
2x-6x=3+12
-4x=15
X= -15/4
C) 3/5x-2/5=3/2-2/5x+1/10
3/5x-2/5=8/5-2/5x
3x-2=8-2x
3x+2x=8+2
5x=10
X=2
D) 1/3•(2x+x)+2/3=2/3-2x+11+1/3x•2
1/3•3x+2/3=2/3-2x+11+2/3x
X=-2x+11+2/3x
3x=-6+33+2x
3x=-4x+33
3x+4x=33
7x=33
X=33/7