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2x+2x+12=2,5x+1,6x+9,6
2x+2x-2,5x-1,6x=9,6-12
-0,1x=-2,4
x=24
2x+2x+12=2,5x+1,6x+9,6
4x-2,5x-1,6x=9,6-12
-0,1x=2,4/:(-0,1)
x=-24
2x+2x+12=2,5x+1,6+9,6
2x+2x+12=2,5x+1,6x+9,6
2x+2x-2,5x-1,6x=9,6-12
-0,1x=-2,4/: (-0,1)
x=24