Question 914055
you have to keep the variables on one side of the equation and the numbers/constants  on other side


4x – 5 = 16 

Adding 5 to both sides eliminates 5 on the left side of the equation

4x-5 +5=16+5

4x = 21

dividing by 4 on both sides we get 
1x = 21/4

x= 5.24



35 + 3x – 11 = 23

24+3x =23

add -24 to both sides

24-24+3x=23-24

3x=-1

divide by 3

x=-1/3