X+3=0 x=-3
x-5=0 x=5
1+x=0 x= -1
--------------------------
2x+14=6 2x=-8 x= -4
2x+14= -6 2x= -20 x= -10
------------------------
9x-18=27 9x=27+18=45 x=5
9x-18=-27 9x=-27+18= -9 x= -1
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8x+12=20 8x=8 x=1
8x+12= -20 8x=-32 x= - 4