1)2x+3=0

2x=-3

x=-3/2

x=-1.5

2)-4x+3=-2x

-4x+2x=-3

-2x=-3

x=3/2

x=1.5

3)6+5x=2x+9

5x-2x=9-6

3x=3

x=3/3

x=1

4)-4(3-x)=2x+7

-12+4x=2x+7

4x-2x=7+12

6x=19

x=19/6

5)7+3(2x+1)=4

7+6x+3=4

6x=4-3-7

6x=-6

x=-6/6

x=-1