a.3+|2x-1|=2 b.11-(15+11-2x)=x-(25-9) c.-3x-12=(-9)-(-15+2x) d.2-x=15-(-5+2x)

a. `3 + |2x – 1 |` `=` `2`

`⇔` `| 2x – 1 | = -1`

`⇔` `x=⦰`

b. `11 – ( 15 + 11 – 2x) = x – ( 25 – 9 )`

`⇔` `11 – (15 + 11 – 2x) = x-16`

`⇔` `11 – (26 – 2x) = x – 16`

`⇔` `11-26+2x` `=` `x-16`

`⇔` `-15+2x` `=` `x-16`

`⇔` `-15+16` `=` `x-2x`

`⇔` `1` `=` `-x`

`⇔` `x` `=` `-1`

c. `-3x-12 = (-9)-(-15+2x)`

`⇔` `-3x-12 = (-9)+15-2x`

`⇔` `-3x-12 = 6-2x`

`⇔` `-3x+2x = 6+12`

`⇔` `x = 18`

d. `2 – x = 15 – (-5 + 2x)`

`⇔` `2-x = 15-5-2x`

`⇔` `2-x = 10-2x`

`⇔` `2-10 = x-2x`

`⇔` `-8 = x`

`⇔` `x = -8`