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5x=18+7
5x=25/:5
x=5
2x+8=22
2x=22-8
2x=14/:2
x=7
-3x-9=36
-3x=36+9
-3x=45/:(-3)
x=-15
18-x=40
-x=40-18
-x=22/:(-1)
x=-22
5x=18+7
5x=25/5
x=5
2x+8=22
2x=22-8
2x=14/2
x=7
-3x-9=36
-3x=36+9
-3x=45/ -3
x=-9
18-x=40
-x=40-18
-x=22/ -1
x=-22
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