1
6x+2-x≤3x+12
5x-3x≤12-2
2x≤10
x≤5
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--------------------------[5]--------
2
7x+4x-8>6+18x
11x-18x>6+8
-7x>14
x<-2<br>\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
-----------------------------(-2)--------
3
2x-2-3x-6<6+6x<br>-x-6x<6+8<br>-7x<14<br>x>-2
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-----(-2)------------------------------
4
7y+21-2y-4≥10y+2
5y-10y≥2-17
-5y≥-15
y≤3
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--------------------------[3]--------
5
18+30y-2-7y≤20+5y
23y-15y≤20-16
8y≤4
y≤0,5
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------------------------------[0,5]---------
6
12y-4-3y+3>6+2y
9y-2y>6+1
7y>7
y>1
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----(1)-----------------------------