Solving Equations

Question 1:

6x6=36x
x =6

Question 2:

7x+3=21+x
x =3

Question 3:

5x6=0+3x
x =3

Question 4:

9x10=892x
x =9

Question 5:

4x+8=386x
x =3

Question 6:

7x+8=1083x
x =10