Solving Equations

Question 1:

3x9=395x
x =6

Question 2:

2x10=39+9x
x =-7

Question 3:

3x7=25x
x =8

Question 4:

9x+3=43x
x =4

Question 5:

8x9=72x
x =9

Question 6:

5x+5=255x
x =2