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4x≤7+1
4x≤8/:4
x≤2
b) 2x-1>x+2
2x-x>2+1
1x>3/:1
x>3
c) 4x+2≤ x-3
4x-x≤-3-2
3x≤-5/:3
x≤-1 2/3
d) 2x-1/2≤1/*2
2x-1≤2
2x≤2+1
2x≤3/:2
x≤1,5
e) 6x+1/2>2/*2
6x+1>4
6x>4-1
6x>3/:6
x>3/6
x=1/2