Solving Equations

Question 1:

7x10=-15+2x
x =-1

Question 2:

10x10=98+x
x =12

Question 3:

3x4=6+8x
x =-2

Question 4:

8x9=9x
x =2

Question 5:

4x+10=46+7x
x =-12

Question 6:

10x5=39x
x =4