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6x+1=4
6x=3
x=1/2
6x+1=-4
6x=-5
x=-5/6
b)3-|t+1|=1
-t-1=1-3
t=-1
-t-1=-1-3
-t=-3
t=3
c)6-|x+1|=2|x+1|
6-|x+1|=2x+2
-x-1=2x+2-6
-x-2x=2-6+1
-3x=-3
x=1
-x-1=-2x-2-6
-x+2x=-2-6+1
x=-7
d)|2x-1|≤1
2x-1≤1
2x≤2
x≤1
2x-1≥-1
2x≥-1+1
2x≥0
x≥0
x∈<0,1>
6x=3
x=1/2
6x+1=-4
6x=-5
x=-⅚
b)3-|t+1|=1
t=1
3-I1+1I=1
3-2=1
-t-1=-1-3
-t=-3
t=3
c)6-|x+1|=2|x+1|
6-|x+1|=2x+2
-x-1=2x+2-6
-x-2x=2-6+1
-3x=-3
x=1
-x-1=-2x-2-6
-x+2x=-2-6+1
x=-7
d)|2x-1|≤1
2x-1≤1
2x≤2
x≤1
2x-1≥-1
2x≥-1+1
2x≥0
x≥0
x∈<0,1>