Have a problem that needs an answer

Question

9x-49=2x solve and check

 

x=

Answer 1

9x-49=2x subtract 2x from both sides

7x-49=0 add 49 to both sides

7x=49  divide both sides by 7

x=7

 

Jim

Answer 2

You'll want to move all like terms to the same side, then combine them. So,

 

9x-49=2x

 

Subtract 2x from both sides,

9x-2x-49=0

7x-49=0

Add 49 to both sides,

7x=49

 

Now, x is by itself, so you can solve:

 

7x=49

x=49/7=7

x=7

 

So, 

9(7)-49=2(7)

63-49=14

14=14