Solving Equations

Question 1:

2x+2=165x
x =2

Question 2:

10x3=30x
x =3

Question 3:

5x+10=28x
x =3

Question 4:

x3=45+7x
x =-8

Question 5:

4x2=25+7x
x =-9

Question 6:

3x+5=264x
x =3